RRCAT- Raja Ramanna Centre for Advanced Technology, Indore



LBAID \| LMDDD \| SSLD \| LMPD \| LESD \| LPD \| CD \| LSES \| MOSS \| LPAS
Laser Materials Development and Devices Division
Publications from LMDDD: Journal Papers Conference Papers Book / Book Chapters Articles in Professional Bulletin / Internal Report Patents Journal Papers [ Top ] 2010 S. Dinakaran, Sunil Verma, S. Jerome Das, S. Kar and K.S. Bartwal Optical imaging of the growth kinetics and polar morphology of zinc tris (thiourea) sulphate (ZTS) single crystals Cryst. Res. & Technol,. 45 (3) (2010) 233-238 S. Dinakaran, Sunil Verma, S. Jerome Das, S. Kar, K.S. Bartwal and P.K. Gupta Investigations for obtaining enhanced SHG element of KH₂PO₄ crystal Physica-B, 405 (2010) 1809-1812 S. Dinakaran, Sunil Verma, S. Jerome Das, G. Bhagavannarayana, S. Kar and K.S. Bartwal Investigations on crystalline and optical perfection of SHG oriented KDP crystals, Applied Physics A: Mater. Sci. & Engg. (2010) DOI: 10.1007/s00339-010-5551-1 S. Kar, Sunil Verma and K.S. Bartwal Preparation of Mn doped Li₂B₄O₇ nanoparticles by glass quenching J. Alloys & Comp. 495 (2010) 288-291 Gurvinderjit Singh and V. S. Tiwari Role of oxygen vacancies on relaxation and conduction behaviour of KNbO₃ ceramic J. Appl. Phys. 107 (2010) 064103 Gurvinderjit Singh, V. S. Tiwari and P. K. Gupta Temperature dependence photo-luminescence of Nd³⁺ doped PLZT ceramic J. Electro-ceramic, DOI 10.1007/s10832-009-9593-8. 2009 N. Sisodia, R. Trivedi, P. K. Sen, K.S. Bartwal, P. Sen Theory of third-order optical susceptibility in magnesium doped lithium niobate crystal Nonlinear Optics, Quantum Optics 39 (2009) 341-353 K.S. Bartwal, H. Ryu, M.G. Brik, I. Sildos Studies of electron-vibrational interaction and crystal field splitting in 5d states of Eu2+ in CaAl2O4 codoped with Eu2+ and Er3+ J Physics D: Applied Physics 42 (2009) 245401-245405 S. Kar, Sunil Verma and K. S. Bartwal Structural and Optical Investigations on Mn doped Li₂B₄O₇ Crystals Cryst. Res. Technol., 44 (3) (2009) 305-308 S. Kar, Sunil Verma, M.W. Shaikh and K.S. Bartwal Effect of proton exchange and annealing on diffraction efficiency of Fe:LiNbO₃ crystals Physica-B 404 (20) (2009) 3507-3509 S. Kar, Sunil Verma, M. S. Khan and K.S.Bartwal Growth and optical homogeneity investigations on Fe and Fe:Mn codoped LiNbO₃ crystals Cryst. Res. Technol. 44 (12) (2009) 1303-1307 S. Dinakaran, Sunil Verma, C. Justin Raj, J. Mary Linet, S. Krishnan and S. Jerome Das Growth of bulk organic single crystal of benzoylglycine by unidirectional crystal growth method Cryst. Growth Des. 9 (1) (2009) 151“155 H. Ryu, K.S. Bartwal Preparation of crystalline fibres of codoped BaAl₂O₄:Eu²⁺: Cr³⁺ Crystal Research & Technol. 44 (2009) 69-73. H. Ryu, K. S. Bartwal Enhancement in photoluminescence on Mg substitution in Mg_xSr_1-xAl₂O₄: Eu, Nd Open Applied Physics Journal 2 (2009) 1-4. H. Ryu, K.S. Bartwal Exploration and optimization of Dy codoping in polycrystalline CaAl₂O₄: Eu J. Alloys & Compd. 476 (2009) 379-382. B. K. Singh, S.W. Cho, K. S. Bartwal Effect on structure and hydrogen storage characteristics of composite alloys Ti_0.32Cr_0.43V_0.25 with LaNi₅and rare-earth elements La, Ce, Y, J. Alloys & Compd. 478 (2009) 785“788. H. Ryu, K. S. Bartwal Defect structure and its relevance to photoluminescence in SrAl₂O₄: Eu²⁺, Nd³⁺ Physica B, 404 (2009) 1714-1718. R. Choubey, R. Trivedi, M. Das, P. K. Sen, P. Sen, S. Kar, K.S. Bartwal, R. Ganeev Growth and study of nonlinear refraction and absorption in Mg doped LiNbO₃ single crystals J Crystal Growth, 311 (2009) 2597-2601. H. Ryu, K.S. Bartwal Doping optimization of Eu and Ho activator ions in polycrystalline CaAl₂O₄ J Alloys & Compd. 480 (2009) 966“969. K.S. Bartwal, H. Ryu, M.G. Brik, I. Sildos Photoluminescence in Mg_xSr_1-xAl₂O₄: Eu²⁺, Nd³⁺and electron-vibrational interaction in the Eu²⁺ 5d states Physica B 404 (2009) 3440-3444. Babu Reddy J N, Suja Elizabeth, H. L. Bhat, and A. K. Karnal Development of a versatile high temperature top seeded solution growth unit for growing cesium lithium borate crystals Review of Scientific Instruments 80 (2009) 013908 1-4. S. Satapathy, P. K. Gupta, and K. B. R. Varma Enhancement of nonvolatile polarization and pyroelectric sensitivity in Lithium tantalite (LT)/Poly(vinylidene fluoride) PVDF nano composite Journal of Physics D: Applied Physics, 42, 055402 (2009). S. Balamurugan, P. Ramasamy, S. K. Sharma, Yutthapong Inkong and Prapun Manyum Investigation of SR method grown <001> directed KDP single crystal and its characterization by High-resolution X-ray diffractometry (HRXRD), Laser damage threshold, Dielectric, Thermal analysis, Optical and Hardness studies Materials Chemistry and Physics, 117(2009) 465-470. Anal Tarafder, Kalyandurg Annapurna, Reenamoni Saikia Chaliha, V. S. Tiwari, P. K. Gupta, and Basudeb Karmakar Processing and Properties of Eu31:LiTaO3 Transparent Glass“Ceramic Nanocomposites J. Am. Ceram. Soc. (2009) (in press) Reenamoni Saikia Chaliha, K. Annapurna, Anal Tarafder, V.S. Tiwari, P.K. Gupta, Basudeb Karmakar Luminescence and dielectric properties of nano-structured Eu3þ:K2O–Nb2O5–SiO2 glass-ceramics Solid State Sciences (2009) (in press) N. V. Prasad, J. Subramanyam, P. Narayana Murthy, S. Karmakar and S.M. Gupta Impedance Measurements on PZT and La_0.75Bi_3.25Ti₃O₁₂ ceramics Intl. J. Mod. Phys. B, 23, 3881-93 (2009). V. Raghavendra Reddy, Deepti Kothari, Ajay Gupta, and S. M. Gupta Study of weak ferromagnetism in polycrystalline multiferroic Eu doped bismuth ferrite Appl Phys Lett 94, 1-3 (2009). Gurvinderjit Singh and V. S. Tiwari Effect of Zr⁴⁺ concentration on conductivity behavior of (1-x)PMN-xPZ ceramic: an impedance spectroscopy analysis J. Appl. Phys. 106 (2009) 124104. Pragya Pandit, S. Satapathy, P. K. Gupta and V. G. Sathe Effect of coalesce doping of Nd and La on structure, dielectric and magnetic properties of BiFeO₃ J. Appl. Phys. 106, 114105 (2009). 2008 Sunil Verma and Paul J. Shlichta Imaging Techniques for Mapping of Solution Parameters, Growth Rate, and Surface Features during the Growth of crystals from Solution Prog. Cryst. Growth & Charact. Materials, 54 (2008) 1-120 S. Kar, Sunil Verma, K. S. Bartwal Optical Inhomogeneities in Li₂B₄O₇ Single Crystals Cryst. Res. Technol., 43 (4) (2008) 438-442 S. Kar, Sunil Verma and K. S. Bartwal Growth Optimization and Optical Characteristics of Fe Doped LiNbO₃ Crystals Cryst. Growth Des., 8 (12) (2008) 4424-4427 H. Ryu, B.K. Singh, K.S. Bartwal Effect of Sr substitution on photoluminescent properties of BaAl₂O₄: Eu²⁺, Dy³⁺ Physica B 403 (2008) 126-130. H. Ryu, B. K. Singh, K.S. Bartwal, M.G. Brik, I.V. Kityk Novel efficient phosphors on the base of Mg and Zn co-doped SrTiO₃:Pr³⁺ Acta Materialia 56 (2008) 358-363. S. Kar, H. Ryu, K.S. Bartwal High Resolution XRD Studies on Mg, Cr and Nd Doped LiNbO₃ Crystals The Open Crystallography Journal 1 (2008) 1-5. H. Ryu, K.S. Bartwal Photoluminescent studies on Ti co-doped CaAl₂O₄: Eu²⁺, Ti³⁺ phosphor Physica B 403 (2008) 1843-47. H. Ryu, B. K. Singh, K.S. Bartwal Synthesis and photoluminescence studies on Sr_1-xBa_xAl₂O₄: Eu²⁺, Dy³⁺ J of Korean Ceramic Soc. 45 (2008) 146-149. S. Kar, K.S. Bartwal Reduction in domain wall width of VTE treated near stoichiometric LiNbO₃ crystals Crystal Research & Technology 43 (2008) 679-682. H. Ryu, K.S. Bartwal Investigations on luminescence characteristics of Eu and Cr codoped BaAl₂O₄ Materials Chemistry & Physics, 111 (2008) 186-189. P. Sen, N. Sisodia, R. K. Choubey, S. Kar, K.S. Bartwal Effect of MgO doping on coercive field in LiNbO₃ crystals J. Nonlinear Optical Physics & Materials, 17 (2008) 175-183. Hojin Ryu, K.S. Bartwal Operation by Eu luminescence in CaAl₂O₄: Eu²⁺ alloys by Zn substitution J. Alloys & Comp. 461 (2008) 395-398. S. Kar, K.S. Bartwal Cu²⁺ion in-diffusion in congruent LiNbO₃ single crystals Mat. Lett. 62 (2008) 3934-3936 H. Ryu, B. K. Singh, K. S. Bartwal Synthesis and optimization of MWCNTs on Co-Ni/MgO by thermal CVD Advances in Condensed Matter Physics, 2008 (2008) 1-6 (Article ID 971457). H. Ryu, K.S. Bartwal An efficient co-doping of Eu and Er in CaAl₂O₄ aluminate phosphor Physica B 403 (2008) 3195-3198. K.S. Bartwal, Hojin Ryu Long persistence in Sr/BaAl₂O₄: Eu²⁺:Dy³⁺ green phosphor J. Resources Processing, 55 (2008) 120-123 H. Ryu, K.S. Bartwal Cr³⁺ doping optimization in CaAl₂O₄: Eu²⁺blue phosphor J Alloys & Comp. 464 (2008) 317-321 H. Ryu, J.B. Lee, K.S. Bartwal Effect of Mg substitution on photoluminescence of Mg_xCa_1-xAl₂O₄: Eu²⁺, Nd³⁺ Physica B 403 (2008) 3822-3825. B.K Singh, Sung-Wook Cho, Ho-Sung Yoon, Chul-Joo Kim, K.S. Bartwal Influence of Cu addition on structure and hydrogen desorption characteristics of Ti_0.16Zr_0.05Cr_0.22V_0.57 Materials Chemistry & Physics 112 (2008) 686-689. H. Ryu, K.S. Bartwal Influence of defects on photoluminescent characteristics of CaAl₂O₄: Eu, Gd J Physics D: Applied Physics, 41(2008) 235404-235407 H. Ryu, B. K. Singh, K.S. Bartwal, I.V. Kityk Technology of Fabrication and Morphology of Multiwalled Carbon Nanotubes on Co-Ni/MgO Catalysts by Thermal CVD J. Nano Research 4 (2008) 45-64. Indranil Bhaumik, S. Ganesamoorthy, R. Bhatt, A. K. Karnal, V. K. Wadhawan, P. K. Gupta, S.Kumaragurubaran, K. Kitamura, S. Takekawa, M. Nakamura Dielectric and AC conductivity studies on undoped and MgO-doped near-stoichiometric lithium tantalate crystals Journal of Applied Physics, Vol.103, (2008), pp.074106. S. Ganesamoorthy, Indranil Bhaumik, R. Bhatt, A.K. Karnal, P. K. Gupta, S.Kumaragurubaran, R. Mohankumar, K. Kitamura, S. Takekawa, M. Nakamura A Comparative Study of Dielectric Relaxation in Sr_0.61Ba_0.39Nb₂O₆ and Sr_0.75Ba_0.25Nb₂O₆ Single Crystals Japanese Journal of Applied Physics, Vol.47, (2008), pp.1012-1015. Indranil Bhaumik, S. Ganesamoorthy, R. Bhatt, A. K. Karnal,V. K. Wadhawan, P.K.Gupta, K.Kitamura, S. Takekawa, M. Nakamura The ferroelectric phase transition in lithium tantalate single crystals: A composition-dependence study Journal of Applied Physics, Vol.103, (2008), pp.14108. S. Satapathy, P. K. Gupta and V. K. Wadhawan, The influence of a ferroelectric domain wall on the fabrication of a pyroelectric laser energymeter Cryst. Res. Technol. 43, No. 4, 390 “ 395 (2008) S. Satapathy, Puja Soni, P. K. Gupta, V. K. Dubey and K. B. R. Varma, Design and Fabrication of Dual Mode Pyroelectric Sensor: High Sensitive Energymeter for Nd: YAG Laser and Detector for Chopped He-Ne Laser Sensors & Transducers, Vol. 92, Issue 5, May 2008, pp. 61-68. S. Satapathy, Shailendra Kumar, B. N. Raja Sekhar, V. G. Sathe and P. K. Gupta, Resonant Raman of O-H/O-D vibrations and photoluminescence studies in LiTaO₃ thin film Journal of Applied Physics, 104, 033542 (2008). S. Rachna, S. Bhattacharyya and Surya M. Gupta Dielectric properties and ac-conductivity analysis of Bi_3.25La_0.75Ti₃O₁₂ ceramic using impedance spectroscopy J. Phys. and Chem. Solids 69, 822-29 (2008). S. Rachna, Surya M. Gupta, S. Bhattacharyya Impedance analysis of Bi_3.25La_0.75Ti₃O₁₂ ferroelectric ceramic Pramana 71, 599-610 (2008). D. K. Kohli, R. K. Khardekar, Rashmi Singh, P. K. Gupta Glass Micro Container Based Hydrogen Storage Scheme International Journal of Hydrogen Energy, 33 (2008), 417-422. 2007 S. Kar, R. K. Choubey, P. Sen, G. Bhagavannarayana, K.S. Bartwal Studies on co-doping behaviour of Nd: Mg: LiNbO₃ crystals Physica B 393 (2007) 37-42. R. K. Choubey, B.Q. Khattak, S. Kar, P. Ramshankar, P.Sen, K.S. Bartwal Influence of doping on OH absorption in LiNbO₃ crystals Crystal Research & Technol., 42 (2007) 718-722. K.S. Bartwal, S. Kar, N. Kaithwas, M. Deshmukh, M. Dave, H. Ryu Preparation of Y₃Al₅O₁₂ nanocrystals by glycol route J. of Korean Ceramic Society, 44 (2007) 151-154. K.S. Bartwal, Hojin Ryu Eu Doping Effect on CaAl₂O₄: Eu²⁺ Phosphor Material J. Semiconductor & Display Equipment Technology, 6 (2007) 65-68. N. Kaithwas M. Deshmukh, S. Kar, M. Dave, N.P. Lalla, H. Ryu, K.S. Bartwal Preparation of Y₃Al₅O₁₂ nanocrystals by low temperature glycol route Crystal Research & Technol. 42 (2007) 991-994. K.S. Bartwal, B. K. Singh, H. Ryu Preparation of CaAl₂O₄: Eu²⁺ long persistent blue phosphor Advanced Materials Research Vols. 26-28 (2007) 573-576. K.S. Bartwal, S. Kar, N. Kaithwas, M. Deshmukh, M. Dave, N.P. Lalla, H. Ryu Synthesis and characterization of Y₃Al₅O₁₂ nanocrystals Advanced Materials Research Vols. 26-28 (2007) 667-670. Hojin Ryu, K.S. Bartwal Photoluminescent spectra of Nd³⁺ codoped CaAl₂O₄: Eu²⁺ blue phosphor Research Letters in Materials Science, 2007 (2007) 1-4 (Article ID 23643). K.S. Bartwal, H. Ryu Optimization of Nd³⁺ ion co-doping in CaAl₂O₄: Eu²⁺ blue phosphor J. Korean Inst. Resources Recycling, 16 (2007) 46-50. B. K Singh, K.S. Bartwal, N. D. Hoa, S.W. Cho, H. Ryu, Synthesis of MWNTs using Fe-Mo bimetallic catalyst by CVD method for field emission application, Solid State Commun. 144 (2007) 498-502. S. Kar, K.S. Bartwal Growth optimization of Li₂B₄O₇ crystals and their characterisation Crystal Growth & Design 7 (2007) 2522-2525. B.K. Singh, K.S. Bartwal, H. Ryu Effect of Mg²⁺ doping on the luminescent properties of ZnGa₂O₄:Mn²⁺ phosphor J. Semiconductor & Display Equipment Technology 6 (2007) 29-32. P. Kumar, S. Moorthy Babu, S. Ganesamoorthy, A.K. Karnal and D. Kanjilal, Influence of swift ions and proton implantation on the formation of optical waveguides in lithium niobate Journal of Applied Physics, Vol. 102, (2007), pp.84905. R. Bhatt, S.Ganesamoorthy, Indranil Bhaumik, A.K. Karnal and V.K. Wadhawan, Growth rate anisotropy and absorption studies on b-BaB₂O₄ single crystals grown by top seeded solution growth technique Optical Materials Vol.29 (2007), pp.801-805. P. K. Patro, A. R. Kulkarni, S. M. Gupta and C. S. Harendranath Effect of homogeneity on microstructure, dielectric and ferroelectric properties of strontium barium niobate Defense Science Journal, 57, 79-87 (2007). N. V. Prasad, S. Karmakar and S.M. Gupta Impedance Measurements on A and B-site modified bismuth layered structure ferroelectric ceramics Intl. J. Mod. Phys. B, 21, 1875-90 (2007). P Pandit, S M Gupta and V K Wadhawan Inverse correlation between maximum shape-memory strain and the relaxor“ferroelectric character of lead magnesium niobate lead titanate martensite Smart Mater. Struct. 16, 1246“1251, (2007). P. K. Patro, A. R. Kulkarni, S. M. Gupta and C. S. Harendranath Improved Microstructure, Dielectric and Ferroelectric Propertirs of Microwave Sintered Sr0.5Ba0.5Nb2O6 Physica B 400, 237-42 (2007). D. Kothari, V. R. Reddy, A. Gupta, V. Sathe, A. Banerjee, S. M. Gupta and A. M. Awasthi Multiferroic properties of polycrystalline Bi_1-xCa_xFeO₃ Appl. Phys. Lett. 91, 202505 (2007). S. Satapathy, P.K. Gupta, Himanshu Srivastava, A.K. Srivastava, V.K. Wadhawan, K.B.R. Varma and V.G. Sathe, Effect of capping ligands on the synthesis and on the physical properties of the nanoparticles of LiTaO₃ J. Crystal Growth, 307 (2007) 185-191. Gurvinderjit Singh and V.S. Tiwari Crystallographic Phase Change in Relaxor to Ferroelectric Behaviour in (1-x)PMN-xPZ Ceramics J. Appl. Phys. (2007) 101 014115. Gurvinderjit Singh, Indranil Bhaumik, S. Ganesamoorthy, A. K. Karnal, and V.S. Tiwari Domain Structure and Birefringence Studies on 0.91Pb(Zn_1/3Nb_2/3)O₃ “0.09PbTiO₃ Single Crystal Crys. Res. & Tech., (2007) 42 378-383. Indranil Bhaumik, Gurvinderjit Singh, S. Ganesamoorthy, A.K. Karnal, M. K. Tiwari and V.S. Tiwari Compositional Variation in 0.65 PbMg_2/3Nb_1/3O₃- 0.35 PbTiO₃ Single Crystals Grown by High Temperature Solution Growth Technique Crys. Res. & Tech., (2007) 42 356-360. Gurvinderjit Singh and V. S. Tiwari Critical Slowing Down in Lead Magnesium Niobate-Zirconate J. Materials Science (2007) 42 9429-9433 Rashmi Singh, R. K. Khardekar, Arun Kumar, D.K Kohli, Preparation and Characterization of Nanocrystalline Nd-YAG Powder Materials Letters 61 (2007) 921-924. 2006 R. K. Choubey, P. Sen, P. K. Sen, R. Bhatt, S. Kar, V. Shukla, K.S. Bartwal Optical properties MgO doped LiNbO₃ single crystals Optical Materials 28 (2006) 467-472. Pratima Sen, Namita Sisodia, K.S. Bartwal Influence of MgO doping on spontaneous polarization and second-order susceptibility in LiNbO₃crystals Optical Materials 29 (2006) 206-210. S. Kar, R. Bhatt,V. Shukla, R. K. Choubey, P. Sen, K.S. Bartwal Optical behaviour of VTE treated near stoichiometric LiNbO₃ crystals Solid State Commun. 137 (2006) 283-287. N. Sisodia, R. Trivedi, R. K. Choubey, P. Sen, P. K. Sen, S. Kar, K.S. Bartwal Influence of MgO doping on refractive indices of LiNbO₃ crystals Appl. Phys. A 84 (2006) 291-295. R. K. Choubey, P. Sen, S. Kar, G. Bhagavannarayana, K.S. Bartwal Effect of codoping on crystalline perfection of Cr: Mg: LiNbO₃ crystals Solid State Commun. 140 (2006) 120-124. Indranil Bhaumik, S.Ganesamoorthy, Rajeev Bhatt, A. K. Karnal, R. Sundarand V.K.Wadhawan Effect of rhodium incorporation in KTiOPO₄ single crystals grown from self-flux Crystal Research and Technology Vol.41, (2006), pp.1180-1183. A. K. Karnal, A. Saxena, S.Ganesamoorthy, Indranil Bhaumik, V. K. Wadhawan, H.L. Bhat and P. K. Gupta Nucleation-trap crystallizer for growth of crystals from solutions Journal of Crystal Growth Vol.297, (2006), pp.152-156. A. K. Karnal, Indranil Bhaumik, S.Ganesamoorthy, R. Bhatt, V. K. Wadhawan and H.L.Bhat Growth and calorimetric measurements on CsLiB₆O₁₀ Materials Letters, Vo.61, (2006), pp.600-604. A.Senthil Kumaran, S.Moorthy Babu, S.Ganesamoorthy, Indranil Bhaumik and A.K.Karnal Crystal Growth and Characterization of KY(WO₄)₂ and KGd(WO₄)₂ for laser applications J. Crystal Growth, Vol.292, (2006), pp.368-372. G. Ravi, K. Kitamura, S. Ganesamoorthy, S. Takekawa, M. Nakamura, Y. Liu, H.Hatano Growth, Optical and Switching Characteristics of Ferroelectric Pure and Mn Doped Near SLN Crystals Ferroelectrics, (2006), Vol.332, pp.51-55. A.K. Karnal, A. Saxena, H.L. Bhat, V.K. Wadhawan and T.P.S. Nathan A novel seed-isolation technique during the processing of solutions J. Crystal Growth 289 (2006) 617. A.K. Karnal and B. K. Sajith Boost Stepper-Motor Switching-Logic-Sequence Performance Electronic Design 54 (2006) 69. S. Satapathy, K.B.R. Varma Orientated nano grain growth and effect of annealing on grain size in LiTaO₃ thin films deposited by sol“gel technique Journal of Crystal Growth, 291 (2006) 232“238. Gurvinderjit Singh, Indranil Bhaumik, S. Ganesamoorthy, A. K. Karnal, and V. S. Tiwari Dielectric and Piezoelectric properties of Cr³⁺ doped PZN single crystals Materials Letters (2006) 60 3307-3310. P. Pandit, Surya M. Gupta & V. K. Wadhawan Effect of electric field on the shape memory effect in Pb[(Mg_1/3Nb_2/3)_0.70Ti_0.30]O₃ ceramic Smart Mat. Struc.15, 653-58 (2006). 2005 Sunil Verma, K. Muralidhar and V. K. Wadhawan Flow Visualization and Modeling of Convection During the Growth of K.D.P. Crystals Ferroelectrics, 323 (2005) 25-37 Sunil Verma, Atul Srivastava, Vivek Prabhakar, K. Muralidhar and V. K. Wadhawan Simulation and Experimental Verification of Solutal Convection in the Initial Stages of Crystal Growth from an Aqueous Solution Indian J. Pure & Appl. Phys., 43 (2005) 24-33 G. Bhagavannarayana, R.V. Anantha Murthy, G.C. Budakoti, B. Kumar, K.S. Bartwal A study of effect of annealing on Fe-doped LiNbO₃ by HRXRD, XRT and FTIR J. Applied Crystallography, 38 (2005) 768-771. R. Bhatt, S. Kar,V. Shukla, P. Sen, P. K. Sen, K.S. Bartwal, V.K. Wadhawan Studies on nonlinear optical properties of ferroelectric MgO -LiNbO₃ single crystals Ferroelectrics 323 (2005) 165-169. S. Kumaragurubaran, S. Takekawa, M. Nakamura, S.Ganesamoorthy, K. Kitamura Polarization Switching and Defect Structure in Pure and MgO Doped Near-Stoichiometric LiNbO₃ Crystals, Ferroelectrics, (2005), Vol.326, pp.113-116. C.V.Kannan, S.Ganesamoorthy, A.Miyazaki, H.Kimura and P.Ramasamy Effect of chromium on optical and electrical properties of self-flux grown KTiOPO₄ single crystals Ferroelectrics, (2005), Vol.326, pp.123-128. C.V.Kannan, S.Ganesamoorthy, K.Kitamura, A.Miyazaki, H.Kimura, R.Sundar and P.Ramasamy Electrical and NLO studies on self-flux grown KTiOPO₄ single crystals Ferroelectrics, (2005), Vol.323, pp.139-144. S. Kumaragurubaran, S. Takekawa, M. Nakamura, S.Ganesamoorthy, K. Terabe, K.Kitamura Domain inversion and optical damage in Zn doped near-stoichiometric lithium niobate crystal IEEE Conference Proceedings on Lasers and Electro-Optics (CLEO) (IEEE Cat. No. 05TH8796), (2005). Vol.1, pp.393-395. C.V.Kannan, S. Ganesamoorthy, D.Rajesh, R.Jayavel and H.Kimura Anisotropic properties of self-flux grown LiB₃O₅ single crystals Solid State Commun., (2005), Vol.136, 215-219. S.Ganesamoorthy, S.Kumaragurubaran, S.Takekawa, M.Nakamura, R.Mohankumar and K.Kitamura Ferroelectric studies on Sr_0.61Ba_0.39Nb₂O₆ single crystal grown by double crucible Stepanov technique Japanese Journal of Applied Physics, (2005), Vol.44, 9B, (2005), 7008-7011. S. Ganesamoorthy, M. Nakamura, S. Takekawa, S. Kumaragurubaran, K. Terabe and K.Kitamura Effect of impressing rate of field on polarization reversal in Mg doped near stoichiometric LiNbO₃ single crystals Mat. Res. Soc., (2005), Vol.848, pp.10-16. S. Ganesamoorthy, M. Nakamura, S. Takekawa, S. Kumaragurubaran, K. Terabe and K.Kitamura A comparative study on the switching characteristics of near stoichiometric LiNbO₃ and LiTaO₃ single crystals grown by DCCZ Materials Science and Engineering B, (2005), Vol.120, pp.125-129. S. Madeswaran, S. V. Rajasekaran, R. Jayavel, S. Ganesamoorthy and G. Behr Domain structure studies on Pb(Zn_1/3Nb_2/3)O₃-PbTiO₃ mixed crystal system Materials Science and Engineering B, (2005), Vol.120, pp.32-36. C. V. Kannan, S. Ganesamoorthy, H. Kimura and A. Miyazaki TSSG of pure and Rh:KTiOPO₄ single crystals and their optical and electrical characterization J. Crystal Growth, (2005), Vol.279, pp.403-409. G.Arunmozhi, S.Ganesamoorthy, C.V.Kannan, P.Ramasamy and E.De.M.Gomes Crystal Growth, dielectric and FIR reflectivity studies on PZN(0.91)-PT(0.09) single crystals Crystal Research and Technology, (2005), Vol.40, pp.773-777. S. Satapathy, and V. K. Wadhawan, Fabrication of pyroelectric laser energy meters and their characterization using Nd:YAG laser of variable pulse-width Sensors and Actuators : A 121 (2005) 576-583. Indranil Bhaumik, Gurvinderjit Singh, S. Ganesamoorthy, A. K. Karnal, V. S. Tiwari and V. K. Wadhawan Growth of 0.91PZN-0.09PT Single Crystal and Effect of Poling on Their Properties Ferroelectrics (2005) 326 73-77 Gurvinderjit Singh, Indranil Bhaumik, V. S. Tiwari, S. Ganesamoorthy and V. K. Wadhawan Effect of Oxygen Annealing on Domain Structure and Dielectric Properties of 0.91PZN- 0.09PT Single Crystal Ferroelectrics (2005) 326 37-41 S. Ganesamoorthy, Gurvinderjit Singh, Indranil Bhaumik, A. K. Karnal, V. S. Tiwari, K. Kitamura and V. K. Wadhawan Growth of Relaxor Ferroelectric Single Crystals PbZn_1/3Nb_2/3O₃ (PZN) by High Temperature Solution Growth Ferroelectrics (2005) 326 19-23 Surya M. Gupta, N. V. Prasad and V. K. Wadhawan Impedance spectroscopy of the relaxor behaviour of P.M.N. and La-doped P.M.N.-P.T. compositions Ferroelectrics, 326, 43-47 (2005) Surya M. Gupta, Sanjib Karmakar and V. K. Wadhawan Dielectric relaxation study of solid solution of lead magnesium niobate and La-doped bismuth titanate Ferroelectrics 326, 49-54 (2005). Surya M. Gupta, Pragya Pandit, Pankaj Patro, Ajit R. Kulkarni and Vinod K. Wadhawan A comparative dielectric relaxation study of PMN-PT and PMN-PZ ceramics using impedance spectroscopy Mat. Sc. & Engg. B, 120, 194-198, (2005). Vinod K. Wadhawan, Pragya Pandit & Surya M. Gupta Relaxor ferroelectrics as very smart materials Mat. Sc. & Engg. B, 120, 199-205, (2005). 2004 S. Kar, R. Bhatt, K.S. Bartwal, V.K. Wadhawan Optimisation of chromium doping in LiNbO₃ single crystals Cryst. Res. & Technol. 39, No. 3, (2004) 230-234. P. Sen, P. K. Sen, R. Bhatt, S. Kar,V. Shukla, K.S. Bartwal The effect of MgO doping on optical properties of LiNbO₃ single crystals Solid State Commun. 129 (2004) 747-752. Indranil Bhaumik, S.Ganesamoorthy, A.K.Karnal and V.K.Wadhawan A study on colouration and axial variation of composition in the single crystal of PbWO₄ grown by Czochralski technique J. Crystal Growth, (2004), Vol.275, pp.839-842. A. Senthil Kumaran, A. Lakshmi Chandru, S. Moorthy Babu, Indranil Bhaumik, S.Ganesamoorthy, A.K.Karnal, V.K.Wadhawan and M.Ichimura Crystal growth of pure and doped KGd(WO₄)₂ and their characterization for laser applications J. Crystal Growth (2004), Vol.275, pp.2117-2121. G. Arunmozhi, E. de. M. Gomes and S. Ganesamoorthy Growth kinetics of zinc(tris)thiourea sulphate (ZTS) crystals Crystal Research and Technology, (2004), Vol.39, pp.408-413. S.Ganesamoorthy, Indranil Bhaumik, A.K.Karnal and V.K.Wadhawan Optical, thermal and defect studies on PbWO₄ single crystals grown by the Czochralski method J. Crystal Growth, (2004), Vol.264, pp.320-326. Gurvinderjit Singh, V. S. Tiwari and V. K. Wadhawan Dipolar-glass-like behaviour of 0.7PMN-0.3PZ ceramic Solid State Communication (2004) 129 665-670. P. Pandit, Surya M. Gupta and V. K. Wadhawan Shape memory effect in PMN-PT 65/35 ceramic Solid State Communication, 131, 665 (2004). 2003 Rajeev Bhatt, Sujan Kar, K.S. Bartwal, V.K. Wadhawan The effect of Cr doping on optical and photoluminescence properties of LiNbO₃ crystals Solid State Commun. 127 (2003) 457-462. C. V. Kannan, K. Kurt, V. Vaithianathan, S. Ganesamoorthy, P. Ramasamy and P.D. Townsend Detection of phase transitions in RbTiOPO₄ and KTiOPO₄ by luminescence J. Phys.: Condens. Matter, (2003), Vol.15, pp.7599-7609. C.V.Kannan, S. Ganesamoorthy, G.Bocelli, L.Righi and P.Ramasamy Growth, structural and optical studies of chromium doped KTiOPO₄ single crystals Journal of Crystal Growth, (2003), Vol.252, pp.328-332. C. V. Kannan, S. Ganesamoorthy, C. Subramanian and P. Ramasamy Dielectric Properties of Self-Flux Grown RbTiOPO₄Single Crystals Physica Status Solidi (a), (2003), Vol. 196, pp. 465-470. Gurvinderjit Singh, V.S. Tiwari, Arun Kumar and V.K. Wadhawan Canonical-glass-like behavior of the polycrystalline relaxor ferroelectric (1-x) PbMg_1/3Nb_2/3O₃-xPbZrO₃ - A heat-capacity study J. Mater. Res. (2003) 18 531-536. 2002 S. K. Sharma, Sunil Verma, B. B. Shrivastava and V. K. Wadhawan In-Situ Measurement of pH and Supersaturation-Dependent Growth Kinetics of the Prismatic and Pyramidal Facets of K.D.P. Crystals J. Cryst. Growth, 244 (2002) 342-348 C.V.Kannan, S.Ganesamoorthy, C.Subramanian and P.Ramasamy One dimensional nature of ionic conductivity in self-flux grown RbTiOPO₄ single crystals International Journal of Modern Physics B, (2002), Vol.16, pp.1-10. Indranil Bhaumik, S. Ganesamoorthy, R. Bhatt, R. Sundar, A.K. Karnal and V.K.Wadhawan Novel seeding technique for growing KTiOPO₄ single crystals by the TSSG method Journal of Crystal Growth, (2002), Vol.243, pp.522-525. C.V.Kannan, S. Ganesamoorthy, V. Kannan, C. Subramanian and P. Ramasamy TSSG of RbTiOPO₄ single crystals from phosphate flux and their characterization Journal of Crystal Growth (2002), Vol.245, pp.289-296. C.V.Kannan, S.Ganesamoorthy, C.Subramanian and P.Ramasamy Investigations on the nucleation thermodynamics of RbTiOXO₄(X= P or As) crystals grown from high temperature solution Crystal Research and Technology, (2002) Vol.37, pp.1180-1187. C.V.Kannan, S.Ganesamoorthy, S.Kumaragurubaran, C.Subramanian and P.Ramasamy Growth of inclusion free KTiOPO₄ single crystal by TSSG and its Ferroelectric characterization Crystal Research and Technology, (2002), Vol.37, pp.1049-1057. S. Satapathy, S. K. Sharma, A. K. Karnal, V. K. Wadhawan, Effect of seed orientation on the growth of TGS crystals with large (010) facets needed for detector applications Journal of Crystal growth 240 (2002) 196-202 S. B. Stringfellow, Surya M. Gupta, C. Shaw, J. R. Alcock and R. W. Whatmore Electrical conductivity control in uranium “doped PbZrO₃-PbTiO₃-Pb(Mg_1/3Nb_2/3)O₃ pyroelectric ceramics J. Europ. Ceram. Soc., 22, 573-78 (2002). C. Shaw, Surya M. Gupta, S. B. Stringfellow, A. Navarro, J. R. Alcock and R. W. Whatmore Pyroelectric properties of Mn-doped lead zirconate-lead titanate-lead magnesium niobate ceramics J. Europ. Ceram. Soc., 22, 2123-2132 (2002). V.S. Tiwari, Gurvinderjit Singh and V.K. Wadhawan Modelling of Relaxor “Ferroelectric Behaviour of PMN-PT and PMN-PZ Ceramics Ferroelectrics (2002) 285 101-109. A.G. Castellanos-Guzman, M. Czank, J. Campamolina, L. Bucio, E. Munoz-Sandoval, R. Escudero, Arun Kumar, Gurvinderjit Singh, V.S. Tiwari and V.K. Wadhawan Boracites: A structural family presenting ferroic phase transition Ferroelectrics (2002) 267 229-236 K.K Mishra, R. K Khardekar , Rashmi Singh, H.C Pant Fabrication of polysterene hollow microspheres as laser fusion targets by optimized density matched emulsion technique and characterization Pramana 59 (2002) 113-131 2001 K.S. Bartwal, R. Bhatt, S. Kar, V. K. Wadhawan Growth and Characterization of PbB₄O₇Single Crystals Mat. Sci. & Engg. B85 (2001) 76-79. K.S. Bartwal Lead Tetraborate: A New Promising NLO Crystal Laser Horizon, Vol. 5, No. 2 (2001) 25-27. A.K. Karnal Logic level selects direct or inverse-acting power control curve Electronics World, 107 1786 (2001) 791. A.G. Castellanos-Guzman, M. Czank, Arun Kumar, Gurvinderjit Singh, V.S. Tiwari and V. K. Wadhawan Calorimetric, Optical, and Electron Microscopy Studies of Co₃B₇O₁₃Cl Ferroelectric- Ferroelastic Boracite Ferroelectrics (2001) 251 61-68. Gurvinderjit Singh, V.S. Tiwari and V.K. Wadhawan Crossover from Relaxor to Normal Feroelectric in (1-x) PbMg_1/3Nb_2/3O₃-x PbZrO₃ Ceramic Near x=0.50 Solid State Communication (2001) 118 407-411. V.S. Tiwari, Gurvinderjit Singh and V.K. Wadhawan Activation-Energy Anomaly in the Cluster Dynamics of the Relaxor Ferroelectric 0.9PbMg_1/3Nb_2/3O₃-0.1PbTiO₃ Solid State Communication (2001) 121 39-43. K.K Mishra, R. K Khardekar , Rashmi Singh, H.C Pant, N.G Borisenko, A.I Gromov and Ju. A. Merkulev Development of polystyrene microshells doped ultra fine metal particles as radiation preheated ICF targets using optimized emulsion technique Plasma Physics and Control Fusion 43 (2001) 1723-1732 2000 Sunil Verma, M. K. Singh, V. K. Wadhawan and C. H. Suresh Growth Morphology of Zinc Tris (Thiourea) Sulphate Crystals Pramana “ J. Physics, 54 (6) (2000) 879-888 Z. Xu, Surya M. Gupta, Dwight Viehland, Y. Yan and Stephen J. Pennycook Direct imaging of atomic ordering in undoped and La-doped Pb (Mg_1/3Nb_2/3)O₃ J. Am. Ceram. Soc., 83, 181-88 (2000). Relaxational polarization in polar dielectric barium magnesium niobate Surya M. Gupta, E. Furman, E. Colla, Z. Xu and Dwight Viehland J. Appl. Phys., 88, 2836-42 (2000). A.G. Castellanos-Guzman, J.Reyes-Gomez, M.Czank, Arun Kumar, Gurvindergit Singh, V.S. Tiwari and V.K. Wadhawan Calorimetric, Optical, and Anti-Phase Domain Studies on Ferroelectric-Ferroelastic Ni₃B₇O₁₃Cl Boracite Ferroelectrics (2000) 237 89-96. K.K Mishra, R.K Khardekar, Rashmi Singh and H.C Pant A simple and efficient levitation technique for non contact coatings of Inertial Confinement Fusion Targets Pramana 55 (5-6) (2000) 919-925 1999 S. Ganesamoorthy, F.J. Kumar, S. Balakumar, C. Subramanian and P. Ramasamy Top seeded solution growth of KTP single crystals and their characterization Materials Science and Engineering B, (1999), Vol.60, pp.88-94. S. Ganesamoorthy, F. Joseph Kumar, C.V. Kannan, C. Subramanian and P. Ramasamy Conductivity and dielectric studies on flux grown KTiOPO₄ single crystals Ferroelectrics, (1999), Vol.230, pp.175-180. S. Ganesamoorthy, S. Balakumar, C. Subramanian and P. Ramasamy Ferroelectric domain structure studies on PbTiO₃ single crystals by polarizing microscope, SEM and AFM Ferroelectrics, (1999), Vol.231, pp.49-54. S. Ganesamoorthy, S. Balakumar, C. Subramanian and P. Ramasamy Growth and characterization of Pb_1-xCa_xTiO₃ single crystals by self-flux technique Materials Chemistry and Physics, (1999), Vol.57, pp.281-284. A.K. Karnal and Hari Om Mahawar Triangle / Square- Wave Oscillator Serves Dual Purpose Electronic Design 47 24 (1999) 124. S.M. Gupta and Dwight Viehland Influence of non-stoichiometric ordering on the electrostriction coefficient of lead magnesium niobate lead titanate compositions close to the morphotropic phase boundary J. Mat. Sci., 34, 5649-59 (1999). Eugene V. Colla, E. Furman, Surya M. Gupta, Nikolai K. Yushin and Dwight Viehland Dependence of dielectric relaxation on ac drive in [Pb (Mg_1/3Nb_2/3)O₃]_(1-x)-(PbTiO₃)_(x) single crystals J. Appl. Phys., 85, 1693-97 (1999) E. Colla, Surya M. Gupta, Dwight Viehland Alternating current field effect on the freezing temperature of relaxor ferroelectrics J. Appl. Phys., 85, 362-67 (1999). 1998 S. Ganesamoorthy, F. Joseph Kumar, S. Balakumar and C. Subramanian Growth of lead titanate single crystals and their characterization Journal of Korean Physical Society, (1998), Vol.32, pp.S1214-S1216. S. Ganesamoorthy, F. Joseph Kumar, C. Subramanian, G. Bocelli and P. Ramasamy Structure refinement of nonlinear optical material K_0.97Ti_0.97Nb_0.03OPO₄ Materials Letters, (1998), Vol.36, pp.266-270. S. Balakumar, S. Ganesamoorthy, G. Bocelli and C. Subramanian Growth of lead calcium titanate single crystals and their characterization Ferroelectrics, (1998), Vol.207, pp.497-505. A.K. Karnal, Hari Om Mahawar and V.K. Wadhawan Controller Using Programmable Timers for Accelerated Rotation for Stirring During Crystal Growth From Solution or Melt Indian Journal of Pure and Applied Physics 36 (1998) 587. V.S. Tiwari, Arun Kumar, V.K. Wadhawan and Dhananjai Pandey Kinetics of formation of the Pyrochlore and Perovskite Phases in Sol-Gel Derived PZT Powder J. Mater. Res. (1998) 13 2170-2173. Gupta S. M., Li, J. F., and Dwight Viehland Co-existence of Relaxor And Normal Ferroelectric Phases For La-Modified PZT at Morphotropic Phase Boundary J. Am. Ceram. Soc. 81 (3) 557-64 (1998). Tetragonal to Rhombohedral Transformation in the Lead Zirconium Titanate (PZT) Lead Magnesium Niobate-Lead Titanate (PMN-PT) Crystalline Solution Gupta S. M. and Dwight Viehland J. Appl. Phys., 83, 407-14 (1998). 1997 S. Balakumar, J.B. Xu, J.X. Ma, S. Ganesamoorthy, I.H. Wilson Surface morphology of ferroelectric domains in BaTiO₃ single crystals: An atomic force microscope study Japanese Journal of Applied Physics, (1997), Vol.36, pp.5566-5569. F. Joseph Kumar, S. Ganesamoorthy, C. Subramanian and G. Bocelli Growth and characterization of KTiOPO₄ single crystals Materials Science and Engineering B, (1997), Vol.49, pp.31-35. A.K. Karnal and Hari Om Mahawar Amplifier polarity reversing switch Electronics World 103 (1997) 944. Gupta S. M. and Dwight Viehland Compositional Studies of La-Modified Morphotropic Phase Boundary Pb (Mg_1/3Nb_2/3)O₃-PbTiO₃ Ceramics J. Am. Ceram. Soc., 80, 477-85 (1997). Gupta S.M., Harendernath C. S. and Kulkarni A.R. Synthesis and Characterization of Lead Magnesium Niobate Having Exceptionally High Dielectric Constant Ceramic International, 23, 191-96 (1997) 1996 F. Joseph Kumar, S. Ganesamoorthy, D. Jayaraman and C. Subramanian Estimation of metastable zone width, interfacial energy and growth rates of KTiOPO₄ crystallizing from K₆P₄O₁₃ flux by hot stage microscopy Journal of Crystal Growth, (1996), Vol.160, pp.129-135. S. Balakumar, R. Illangovan, S. Ganesamoorthy, C. Subramanian Preparation, morphology and X-ray diffraction studies on barium strontium titanate single crystals Materials Research Bulletin, (1995), Vol.30, pp.897-907. Gupta S.M., Bedekar P.R., and Kulkarni A.R. Synthesis, Dielectric and Microstructure Studies of Lead Magnesium Niobate Stabilized Using Lead Titanate Ferroelectrics, 189, 17-25 (1996). Gupta S. M. and Dwight Viehland Role of charge compensation mechanism in La-modified Pb(Mg_1/3Nb_2/3)O₃-PbTiO₃ ceramics: Enhanced ordering and pyrochlore formation J. Appl. Phys., 80, 5875-83 (1996). Gupta S.M. and Kulkarni A.R. Dielectric and Microstructure Studies of Lead Magnesium Niobate Prepared by Partial Oxalate Route J. Europ. Ceram. Soc., 16, 473-80 (1996). Gupta S.M., Kulkarni A.R., Vedpathak M., and Kulkarni S. K. Surface Study of Lead Magnesium Niobate Ceramic Using X-Ray Photoelectron Spectroscopy Mat. Sc. and Eng. B39, 34-40 (1996). 1995 K.S. Bartwal Ti - Atom Disorder in Ti_1+xS₂ Crystals Phil. Mag. B 71 (1995) 895-899. K.S. Bartwal, O.N. Srivastava. Growth and Characterization of Single Crystals in the Series ZrS_xSe_2-x Mat. Sci. & Engg. B33 (1995) 115-121. V.S. Tiwari, Neelam Singh and Dhananjai Pandey Diffuse Ferroelectric Transition and Relaxational Dipolar Freezing in (Ba,Sr)TiO₃ J. Phys. : Conds. Matter (1995) 7 1441-1460. Gupta S.M. and Kulkarni A.R. Effect of Excess PbO on the Dielectric Properties of Lead Magnesium Niobate Synthesized by Partial Oxalate Route J. Mater. Res., 10, 953-61 (1995). 1994 V.S. Tiwari, Neelam Singh and Dhananjai Pandey Structure and Properties of (Ba,Ca)TiO₃ Ceramics Prepared Using (Ba,Ca)CO₃Precursors. I Crystallographic and Microstructural Studies J. Am. Ceram. Soc. (1994) 77 1813-1818. V.S. Tiwari and Dhananjai Pandey Structure and Properties of (Ba,Ca)TiO₃ Ceramics Prepared Using (Ba,Ca)CO₃Precursors. II Diffuse Phase Transition Behaviour J. Am. Ceram. Soc. 77 (1994) 1819-1824. Gupta S.M. and Kulkarni A.R. Synthesis and Dielectric Properties of Lead Magnesium Niobate - A Review Materials Chemistry & Physics, 39, 98-109 (1994) A.K. Karnal Grounded-load current pump Electronics World +Wireless World, 100 1701 (1994) 690. 1993 P.S.R. Krishna, Dhananjai Pandey, V.S. Tiwari, R. Chakravarthy and B.A. Dasannacharya Effect of Powder Synthesis Procedure on Calcium Site Occupancies in Barium Calcium Titanate : A Rietveld Analysis Appl. Phys. Lett. 62 (1993) 231-233. Gupta S.M. and Kulkarni A.R. Synthesis of Perovskite Lead Magnesium Niobate Using Partial Oxalate Method Mat. Res. Bull., 28 (12) (1993) 1295-1301. Y V S T Sai, T P S Nathan, C P Navathe, R Arya, P Shryner, G Mundra, D K Kohli , P Khare, A S Rajarao, D D Bhawalkar. Development of a CO₂ Laser System ( Model C “ 40 ) for Surgical Applications Journal of Instrument Society of India. Vol. 23 (1 & 2), 1993. Page 16 “ 26. 1992 K.S. Bartwal, O.N. Srivastava Current Controlled Negative Resistance in ZrS₂ Single Crystals Mat. Sci. & Engg. B14 (1992) L11-L13. K.S. Bartwal, O.N. Srivastava Superlattices in non-stoichiometric ZrS₂ Crystals Mat. Sci. & Engg. B14 (1992) L20-L22. Dhananjai Pandey, A.P. Singh and V.S. Tiwari Development in Ferroelectric Ceramics for Capacitor Applications Bull. Mater. Sci. (1992) 15 391-393. D K Kohli , Y V S T Sai, Sabir Ali, T P S Nathan. Development of Thermopile Detectors for CW - CO₂ Lasers Journal of Instrument Society of India. Vol. 22 (1), 1992. Page 31 - 37. 1991 Ram Janam, K.S. Bartwal, O.N. Srivastava Growth of YBa₂Cu₃O_7-xSingle Crystals by Flux Technique Proc. Indian Natn. Sci. Acad. A57 (1991) 337-340. V.S. Tiwari, Dhananjai Pandey, P.S.R. Krishna, R. Chakravarthy and B. A. Dasannacharya Neutron Diffraction Study of Ferroelectric Ba_0.88Ca_0.12TiO₃ Physica B 174 (1991) 112-116. V.S. Tiwari, Sangeeta Chaudhry and Dhananjai Pandey Effect of Heavy Atom Disorder on the Intensities of Powder XRD Lines of YBa2Cu₃O_7-y Phase Transitions (1990) 27 81-89. Dhananjai Pandey, R. Mahesh, A.K. singh, V.S. Tiwari and S.K. Kak On the Formation of the 2223 Phase in Bi-Pb-Sr-Ca-Cu-O System Using Pb_0.2SrCa(CO₃)_2.2 Precursors Solid State Comm. (1990) 76 655-658. D. Pandey, A.K. Singh, R. Mahesh, V.S. Tiwari and S.K. Kak The Effect of Semi-Wet Synthesis on the Formation of the 2223 Phase in Bi_1.6Pb_0.4Sr₂Ca₂Cu₃O_y Composition Physica C (1991) 173 476-486. Dhananjai Pandey, R. Mahesh, A.K. Singh and V.S. Tiwari Preparation of Nearly Single Phase 2223 in Bi1.6Pb_0.4Sr₂Ca₂Cu₃O_y Composition by a Semi-Wet Route Using Pb_0.2SrCa(CO₃)_2.2 Physica C (1991) 184 135-143. B D Sukheeja, D K Kohli Charge Amplifier Type of Flux Meter The Physics Teacher. Vol. 29 (5), May 1991. Page 283. 1990 K.S. Bartwal, O.N. Srivastava Study of Metal - Insulator Transition in TiS_xSe_2-x Single Crystals Phase Transitions, 20 (1990) 73-81. Dhananjai Pandey, V.S. Tiwari, A.K. Singh, V.K. Wadhawan and M. S. Somayajullu Crystallographic and Microstructural Aspects of The Superconductor YBa₂Cu₃O_7-yAn - Overview Phase Transitions (1990) 27 165-202. D. Pandey, R. Mahesh, V.S. Tiwari, A.K. Singh and S.K. Kak Zero Resistivity at 122 K in Bi-Pb-Sr-Ca-Cu-O System Solid State Comm. (1990) 75 499-502. 1989 V.S. Tiwari, Dhananjai Pandey and Paul Groves Influence of Powder Processing Technique on Chemical Homogeneity and Diffuse Phase Transition Behaviour of Ba_0.9Ca_0.1TiO₃ Ceramics J. Phys. D (1989) 22 837-843. Dhananjai Pandey, V.S. Tiwari and A.K. Singh A Semi-Wet Route to the Synthesis of YBa₂Cu₃O_7-y Ceramics J. Phys. D (1989) 22 182-186. D. Pandey, V.S. Tiwari, A.K. Singh and Sangeeta Chaudhry Characterization of Ferroelectric and Superconducting Ceramics Prepared from Precursor Carbonates Bull. Mater. Sci. (1989) 12 245-261. A.K. Karnal and K.C.Tripathi Transistor tester cum h_FE meter Electronics World+Wireless World, 95 1644 (1989) 1021. A.K. Karnal and K.C. Tripathi A Novel Automatically Synchronized Ramp A/D Converter IEEE Trans. Instrum. Meas., IM38 3 (1989) 832. 1988 Dhananjai Pandey , V.S. Tiwari, A.K. Singh and Sangeeta Chaudhry. Influence of Powder Processing on the Superconducting Behaviour of YBa₂Cu₃O_7-y Ceramics Pramana - Journal of Physics (1988) 30 L251-L254. V.S. Tiwari, A.K. Singh and Dhananjai Pandey Compositional Fluctuation and Coherent Domain Size in YBa₂Cu₃O_7-y Rev. Solid State Sci. (1988) 2 173-176. Dhananjai Pandey, V.S. Tiwari and A.K. Singh Crystallographic Aspects of YBa₂Cu₃O_7-y Superconductors Journal of Scientific Research, Banaras Hindu University (1988) 38 69-96. 1987 Dhananjai Pandey, V.S. Tiwari, T.B. Singh, Lakshman Pandey, Om Parkash and P. Ramachandrarao Diffuse Phase Transition in (Ba,Ca)TiO₃ Ceramics Phase Transitions (1987) 9 11-22. A.K. Karnal, Krishna Chandra Triphati and Ved Prakash Inexpensive sawtooth wave: Adjustable and frequency independent duty-cycle square-wave oscillator IEEE Trans. Instrum. Meas., IM 36 1 (1987) 120. 1986 B. Das, K.S. Bartwal, O.N. Srivastava Metal- Insulator Transition in Titanium Disulphide Crystals Phys. Stat. Solidi (b) 136 (1986) 365-371. A.K. Karnal, Ved Prakash and K. C. Triphati Fuse Replacement by Variable Semiconductor Electronic Engineering, 58 719 (1986) 34. 1985 K.S. Bartwal, B. Das, O.N. Srivastava Metal- Semiconductor Transition in TiS_1.7 Single Crystals Crys. Res. & Technol. 20 (1985) K87-K89. V. Prakash, R. Koul, K.C. Triphati, S.S.Choudhary and A.K. Karnal Versatile Timer Controls Firing Angle for Voltage Stabilization SJIETE 26 (1985) 159. Conference Papers [ Top ] 2010 Rachna Selvamani, H. Srivastava, P. Tiwari, P. Ram Sankar, Gurvinderjit Singh and V. S. Tiwari Sol-gel template based synthesis of one-dimensional nanostructures of Bi_3.25La_0.75Ti₃O₁ International Conference on Advances in Electron Microscopy and Related Techniques & XXXI Annual Meeting of EMSI (EMSI-2010), Bhabha Atomic research Centre, Mumbai, 8-10 March, 2010. 2009 Gurvinderjit Singh, V. S. Tiwari, and P. K. Gupta Oxygen vacancy related dielectric relaxation and conduction in KNbO₃ ceramic International Conference on Electro-ceramics, University of Delhi, Delhi, 13-17 Dec. 2009. Gurvinderjit Singh, Indranil Bhaumik, S. Ganesamoorthy, A. K. Karnal, V. S. Tiwari, and P. K. Gupta In-situ Phase Transition Study on Lead-based Relaxor-ferroelectric Crystals Using Polarized Light Microscopy National Symposium on Growth of Detector-Grade Single Crystals, Bhabha Atomic Research Centre, Mumbai (INDIA), 19-21 November, 2009 K.S. Bartwal, H. Ryu, M.G. Brik, I. Sildos Photoluminescence of Eu²⁺ in long-lasting phosphors and electron-vibrational interaction in the Eu²⁺ 5d states 5^th International Symposium on Laser, Scitillator and Nonlinear Optical Materials, Pisa, Italy, Sept. 3-5, 2009. N. Kaithwas, M. Dave, S. Kar, K.S. Bartwal Preparation and characterization of Ce:YAG nanocrystals Bharatiya Vigyan Sammelan, DAVV, Indore, Dec. 1-3, 2009. Sunil Verma Optical Imaging Techniques for Studying Crystal Growth Process: Present and Future 13^th National Seminar on Crystal Growth, 27-29 Jan 2009, SSN College of Engineering, Chennai S. Kar, Sunil Verma, M. Sirajuddin Khan, K.S. Bartwal, P.K. Gupta Growth and Photorefractive Characteristics of Doubly Doped Lithium Niobate Crystals 13^th National Seminar on Crystal Growth, 27-29 Jan 2009, SSN College of Engineering, Chennai S. Kar, Sunil Verma, K.S. Bartwal Growth and characterization of Mn doped Li₂B₄O₇ crystals National Symposium on Growth of Detector-Grade Single Crystals, 19-21 Nov 2009, BARC Mumbai, 144-145. S. Ganesamoorthy, Indranil Bhaumik, R. Bhatt, A. K. Karnal and P. K. Gupta, Development and characterization of OPO crystals BRNS Theme Meeting on Widely Tunable OPO, BARC, Mumbai, August 28-29, 2009. P. Kumar, S. MoorthyBabu, Indranil Bhaumik, S. Ganesamoorthy, A.K. Karnal, I. Sulania, Praveen Kumar, G.O. Rodrigues, D. Kanjilal Nano hillock and complex crater formation by low energy proton implantation in lithium niobate International Symposium on Laser, Scintillator, Non linear Optical Materials (ISLNOM5), Pisa, Italy, 3-5 September 2009. P. Kumar, S. MoorthyBabu, Indranil Bhaumik, S. Ganesamoorthy, A.K. Karnal, A.K. Pandey, R. Raman Influence of dopant concentration on the structural and optical characteristics in Ti doped LiNbO3 International Symposium on Laser, Scintillator, Non linear Optical Materials (ISLNOM5), Pisa, Italy, 3-5 September 2009. S. Ganesamoorthy, Indranil Bhaumik, R. Bhatt, A. K. Karnal and P. K. Gupta Growth and characterization of potassium lithium niobate (KLN) single crystals 13^th National Seminar on Crystal Growth, SSN College of Engineering, Kalavakkam, 27-29 January 2009. Sathishkumar S Lature, S. Rachna, R L Raibagkar and S M Gupta Preparation and Ferroelectric Properties of Bi_3.25La_0.75Ti₃O₁₂ Thin Film International Conference on Active/Smart Materials, (ICASM 2009), Madurai, Jan. 7-9, (2009). Synthesis, Structure and Morphological study of La-doped Bismuth Titanate Ceramics Sathishkumar S Lature, S. Rachna, R L Raibagkar and S M Gupta International Conference on Active/Smart Materials, (ICASM 2009), Madurai, Jan. 7-9, (2009). Dielectric and Leakage Current Mechanism in Bi_4-xLa_xTi₃O₁₂ Sathishkumar S Lature, S. Rachna, R L Raibagkar and S M Gupta International Conference on Active/Smart Materials, (ICASM 2009), Madurai, Jan. 7-9, (2009). R.K. Khardekar, D.K. Kohli, Rashmi Singh, M.K. Singh, P. Ramshankar and P.K. Gupta Development of Carbon Aerogel Based Electrodes for Desalination Using Capacitive De-Ionization International Conference on Peaceful Uses of Atomic Energy “ 2009 (September 29 - October 1, 2009), New Delhi, Page 264. R.K. Khardekar, Rashmi Singh, D.K. Kohli, M.K. Singh. P.K. Gupta, V.C. Sahni, A.K. Agarwal and A.L.N. Rao Development of Pt-Carbon Aerogel based Catalysts for benign Process of Heavy Water Production International Conference on Peaceful Uses of Atomic Energy “ 2009 (September 29 - October 1, 2009), New Delhi, Page 126. Sangeeta Tripathi, S. Chaurasia, D.S. Munda, G. Mishra, N.K. Gupta, L.J. Dhareshwar, Rashmi Singh,D. K. Kohli and R. K. Khardekar Experimental Investigations on Low Density Carbon Foams for the Inertial Confinement Fusion Targets International Conference on Peaceful Uses of Atomic Energy “ 2009 (September 29 - October 1, 2009), New Delhi, Page 450. 2008 Hojin Ryu, K.S. Bartwal Tunable emission on Zn substitution in CaAl₂O₄: Eu²⁺ phosphor Mexico-Korea Eco-Materials -2008, Seoul, Feb.22-23, 2008. K.S. Bartwal, Hojin Ryu Preparation of CaAl₂O₄: Eu²⁺: Dy³⁺ blue phosphor Spring Meeting, Korean Ceramic Society, Seoul, April 25-26, 2008. K.S. Bartwal, Hojin Ryu Optimization of Mg doping effect on phosphorescence of CaAl₂O₄: Eu²⁺ Spring Meeting, Korean Ceramic Society, Seoul, April 25-26, 2008. K. S. Bartwal, B. K Singh, S. J. Moon, J.R. Lee, Hojin Ryu Synthesis of CNTs using Cu-Co bimetallic catalyst by CVD method Spring Meeting, Korean Ceramic Society, Seoul, April 25-26, 2008. Hojin Ryu, K. S. Bartwal A study on the preparation of strontium aluminate based green phosphor Spring Meeting, Korean Ceramic Society, Seoul, April 25-26, 2008. H. Ryu, B. K. Singh, K. S. Bartwal Preparation of CNTs on Co-Ni/MgO catalysts by thermal CVD 4^th International Symposium on Nano-Tech, Nano-Bio & Bio-Engg, Baden-Baden, Germany, July 24-30, 2008. H. Ryu, J. B. Lee, K. S. Bartwal Photoluminescence studies on Mg substituted SrAl₂O₄: Eu²⁺, Nd³⁺green phosphor Japan-Korea Joint Workshop on Advanced Semiconductor Processes & Equipments, Shikabe, Japan, Oct. 9-11, 2008. N. Kaithwas, M. Dave, S. Kar, K.S. Bartwal Preparation of Nd doped YAG nanocrystalline material by glycol route ICANAT-2008, MATS University, Raipur, Nov. 6-8, 2008. Hojin Ryu, K. S. Bartwal Preparation of an efficient green phosphor SrAl₂O₄: Eu²⁺, Nd³⁺ 2^nd International Symposium SAMPADA-2008 Pune, India, Dec. 8-12, 2008. Hojin Ryu, K. S. Bartwal Investigations on an efficient green phosphor Mg_xSr_1-xAl₂O₄: Eu²⁺, Nd³⁺ 6^th Korea-Japan International Symposium on Resources Recycling and Materials Science, Pohang, Korea, Nov. 20-21, 2008. S. Kar, Sunil Verma, M.W. Shaikh and K.S. Bartwal Influence of Proton Exchange and Annealing on Holographic Properties of Fe Doped LiNbO₃ Crystal Int. Conf. on Fiber Optics and Photonics (PHOTONICS-2008), IIT Delhi, Dec. 2008, p. 407. Sunil Verma and K. Muralidhar Three-Dimensional Reconstruction of Convective Features during Crystal Growth from Solution using Computerized Tomography International Conf. on Application of Computerized Tomography, Feb. 16-18, 2008, I.I.T., Kanpur, India Sunil Verma Crystal Growth Mechanism Studies using Optical Diagnostics National Conference on Emerging Trends in Crystal Growth & Nano Materials, 28-29 Feb. 2008, Loyola College, University of Madras, Chennai, p. 8 S. Dinakaran, Sunil Verma, S. Jerome Das Growth of NLO active lithium para-nitrophenolate trihydrate single crystal National Conference on Emerging Trends in Crystal Growth & Nano Materials, 28-29 Feb. 2008, Loyola College University of Madras, Chennai, p. 63 Sunil Verma and K. Muralidhar Refractive Index Based Optical Techniques for Measurement of Thermal, Solutal, and Fluid Flow Properties National Conf. on Advances in Fluid Flow and Thermal Sciences, 22-24 May 2008, SVNIT, Surat A.R. Kulkarni, P. K. Patro, S. M. Gupta, C. S. Harendranath Electrical properties of ferroelectric Sr_0.5Ba_0.5Nb₂O₆ ceramic materials synthesized by different techniques ISAF 2008 - 17^th International symposium on the applications of ferroelectrics, February 24-27, 2008, Santa Fe, New Mexico, USA. Sanjib Karmakar, Sushil Kumar Pathak, Siddhram Markam, Surya Mohan Gupta and Pradeep Kumar Gupta Development of IR-Transparent Zinc Sulphide Dome Using Chemical Vapour Deposition Technique 2^nd International Symposium on Advanced Materials and Polymers for Aerospace and Defense Application (SAMPADA-2008), Pune, Dec. 8-12, (2008). Pragya Pandit and S. Satapathy Multiferroic properties of Bi(0.9-x)La0.1NdxFeO3 polycrystalline ceramics National Symposium for materials research scholars (MR-2008), IIT Bombay, Powai Pragya Pandit, S. Satapathy and Pradeep K.Gupta Multiferroic properties of Bi_0.9-xLa_0.1Er_xFeO₃ polycrystalline ceramics MS&T08 Material science & Technology 2008 conference to be held at David Lawrence convention centre at Pittsburgh, Pennsylvania (U.S.A) S. Satapathy, P. K. Gupta, and K. B. R. Varma, Pragya Tiwari and V. Ganeshan Study on dielectric behavior of Lithium Tantalate(LT) nano particle filled Poly (vinylidene fluoride) (PVDF) nano composite Processing and Fabrication of Advanced Materials XVII, Editors N. Bhatnagar and T. S. Srivatsan, I. K. International Publishing House Pvt. Ltd. Volume-II, page 509. 2007 Gurvinderjit Singh, V. S. Tiwari, T. K. Sharma and P. K. Gupta Effect of temperature on photo-luminescence of Nd³⁺ doped PLZT DAE Solid State Physics Symposium, University of Mysore, Mysore, INDIA, 27-31 December, 2007 B.K. Singh, K.S. Bartwal, H. Ryu, Ho-Jung ChangPreparation of ZnGa₂O₄ Green Phosphors and their Luminescent Properties 1^st International Workshop for R&D Clustering Among Mexico-Korea in Eco-Materials, Mexico, Jan 28-31, 2007. K. S. Bartwal, S. Kar, N. Kaithwas M. Deshmukh M. Dave, H. Ryu Preparation of Y₃Al₅O₁₂ nanocrystals by glycol route Spring Meeting, Korean Ceramic Society, Seoul, April 20-21, 2007. K. S. Bartwal, B. K. Singh, H. Ryu Effect of Zn doping on phosphorescence of CaAl₂O₄: Eu²⁺ Spring Meeting, Korean Ceramic Society, Seoul, April 20-21, 2007. B. K. Singh, K.S. Bartwal, Hojin Ryu Optimization of Tm, Mg doping concentration in ZnGa₂O₄ phosphor Spring Meeting, Korean Ceramic Society, Seoul, April 20-21, 2007. B. K Singh, K. S. Bartwal, Hojin Ryu Preparation of MWNTs using Fe-Mo bimetallic catalyst by CVD method Spring Meeting, Korean Ceramic Society, Seoul, April 20-21, 2007. K.S. Bartwal, Hojin Ryu Studies on Eu Doping Effect on CaAl₂O₄: Eu²⁺ Phosphor Material Semiconductor & Display Equipment Technology Meeting, Seoul, June 8-9, 2007. H. Ryu, K.S. Bartwal Studies on long persistent phosphor material CaAl₂O₄: Eu²⁺:Nd³⁺ Earth 2007, Japan Ceramic Society Meeting, Japan, Nov. 2-4, 2007. K. S. Bartwal, S. Kar, N. Kaithwas M. Deshmukh M. Dave, N.P. Lalla, H. Ryu Synthesis and characterization of Y₃Al₅O₁₂ nanocrystals 6^th Pacific Rim International Conference on Advanced Materials & Processing, ICC Jeju, Korea, Nov. 6-9, 2007. K.S. Bartwal, B.K. Singh, H. Ryu Preparation of CaAl₂O₄: Eu²⁺ long persistent blue phosphor 6^th Pacific Rim International Conference on Advanced Materials & Processing, ICC Jeju, Korea, Nov. 6-9, 2007. H. Ryu, B. K. Singh, J.R. Lee, K.S. Bartwal Preparation of MWNTs on Cu/MgO catalysts by thermal CVD Korea-Japan Joint Workshop on Advanced Semiconductor Processes and Equipments (ASPS-2007) Busan, Oct.4-6, 2007 R. K. Choubey, P. Sen, P. K. Sen, S. Kar, K. S. Bartwal Measurement of nonlinear absorption coefficient of Mg:LiNbO₃ crystal by Z-scan technique DAE-BRNS National Laser Symposium, MS University Baroda, Dec.5-8, 2007 K.S. Bartwal, Hojin Ryu Investigations on long persistence in BaAl₂O₄: Eu²⁺:Cr³⁺ green phosphor ICRA Korea-Japan Joint Seminar on Powder Technology, Seoul, Dec. 3-4, 2007. N. Kaithwas, M. Deshmukh, M. Dave, S. Kar, K.S. Bartwal Studies on YAG nanocrystals prepared by modified sol-gel techniques MP Science Congress 2007, Indore, Dec. 16-18, 2007. K.S. Bartwal, Hojin Ryu Long persistence in BaAl₂O₄: Eu²⁺:Dy³⁺ green phosphor Japan-Korea International Symposium on Resources Recycling and Materials Science, Kitakyushu, Japan, Dec. 20-22, 2007. S. Kar, Sunil Verma, Nalini Patoliya and K. S. Bartwal, Growth and Characterization of Pure and Mn doped Li₂B₄O₇ Single Crystal 7^th National Laser Symposium, 17-20 Dec. 2007, M.S. University of Baroda, Vadodra, 193-194 Sunil Verma and Eglon Depty Influence of pH of Solution on the Growth Rate and Morphology of KDP Crystals 7^th National Laser Symposium, 17-20 Dec. 2007, M.S. University of Baroda, Vadodra, 191-192 Sunil Verma Development and Application of Optical Diagnostics for Imaging Crystal Growth from Solution 7^th National Laser Symposium, 17-20 Dec. 2007, M.S. University of Baroda, Vadodra, pp. Th13-Th17 Sunil Verma, Eglon Depty and P.K. Gupta Strength of Free Convection during KDP Growth and its Relation to Crystal Quality 52^nd Solid State Physics Symposium, 27-31 Dec. 2007, University of Mysore, Mysore P. Kumar, S. Moorthy Babu, S. Ganesamoorthy, Indranil Bhaumik, A. K. Karnal and D. Kanjilal Development of proton implanted optical waveguides in lithium niobate 52^nd DAE Solid State Physics Symposium, University of Mysore, Dec. 27-31, Vol.52, 2007, pp. 425. P. Samuel, A. Senthil Kumaran, S. Moorthy Babu, S. Ganesamoorthy and A.K. Karnal Growth and characterization of Nd and Yb doped KGd(WO₄)₂ single crystals 52^nd DAE Solid State Physics Symposium, University of Mysore, Dec. 27-31, Vol.52, 2007, pp.1153. S. Ganesamoorthy, Indranil Bhaumik, G. Singh, R. Bhatt, A.K. Karnal and P.K. Gupta Growth of relaxor ferroelectric single crystals and their characterization 12^th National Seminar on Crystal Growth, SSN College of Engineering, Kalavakkam, Tamilnadu, Dec. 21-23, 2007 P. Kumar, S. Moorthy Babu, S. Ganesamoorthy, Indranil Bhaumik, A. K. Karnal and D. Kanjilal Effect of H⁺ ion implantation on the surface and structural properties of lithium niobate for optical waveguide application 7^th DAE-BRNS, National Laser Symposium, M.S. University of Baroda, December 17-20, 2007. P. Samuel, A. Senthil Kumaran, S. Moorthy Babu, S. Ganesamoorthy, A.K. Karnal, Indranil Bhaumik and P.K. Palanisamy Growth and characterization of Nd:KGW laser material 7^th DAE-BRNS, National Laser Symposium, M.S. University of Baroda, December 17-20, 2007. S. K. Sharma and Yeshpal Singh In-situ investigation of saturation temperature of KDP solution for bulk crystal growth 7^th DAE-BRNS National Laser Symposium, December 17 “20, 2007 (NLS-7), Vadodara, Gujarat, pp.62. Automation of three stage Desalination Unit H. Ashoka, M. R. Jathar, V.Zalani, D. K. Kohli, R. K. Khardekar National Symposium on Instrumentation (NSI-32), K.S. Rangasamy College of Technology, Tiruchengode, Tamilnadu, Oct., 24-26, 2007 2006 R. K. Choubey, S. Kar, R. Bhatt, P. Sen, G. Bhagavannarayana, K. S. Bartwal Growth and defect structure of Nd₂O₃ and MgO co-doped LiNbO₃ crystals Proc. NSC -35, NPL New Delhi, Feb. 22-24, (2006). K.S. Bartwal Advances in Growth and Characterization of Optical Crystals Proc. National Science Day Celebration Seminar on Future Trends in Materials and Characterisation, Loyola College, Chennai, Feb. 28, 2006 K.S. Bartwal Recent Advances in Growth and Characterization of NLO Crystals Proc. Recent Advances in Condensed Matter & Space Physics, Department of Physics, Saurashtra University, Rajkot, March 21, 2006 G. Thanigai Arasu, Sujan Kar, R. Gopalakrishnan, K. S. Bartwal Measurement of half wave voltage of lithium niobate crystal Proc. National Conference on Crystal Growth for Electro-Optic Applications, KITS, Coimbatore, June 16-17, 2006. S. Kar, K. S. Bartwal Domain wall width of VTE treated near stoichiometric LiNbO₃ crystal DAE-BRNS National Laser Symposium, CAT, Indore, Dec.5-8, 2006. S. Kar, K. S. Bartwal Theoretical coercive field of MgO doped LiNbO₃ crystal DAE-BRNS National Laser Symposium, CAT, Indore, Dec.5-8, 2006. R. Choubey, P. Sen, S. Kar, B.Q. Khattak, P. Ramshankar, K. S. Bartwal OH^-spectroscopy of Mg:Nd:LiNbO₃ single crystals DAE-BRNS National Laser Symposium, CAT, Indore, Dec.5-8, 2006. K. S. Bartwal Study of domain wall width of ferroelectric LiNbO₃ crystals XI National Seminar on Crystal Growth, SSN College, Chennai, Dec.7-9, 2006 N. Kaithwas, M. Deshmukh, S. Kar, M. Dave, N.P. Lalla, K. S. Bartwal Preparation and characterization of Y₃Al₅O₁₂ (YAG) nanocrystals" XI National Seminar on Crystal Growth, SSN College, Chennai, Dec.7-9, 2006 Sunil Verma and K. Muralidhar Composite Experimental Set Up Integrating Multiple Optical Diagnostics for Crystal Growth Studies 17^th MRSI, 13-15 Feb. 2006, University of Lucknow, Lucknow, India, 89-90 S. Ganesamoorthy, Indranil Bhaumik, R. Bhatt, A.K. Karnal and P.K. Gupta Growth of large, device quality NLO crystals by flux growth method 6^th National Laser Symposium (NLS-6), RRCAT, Dec.5-8, 2006 Rajeev Bhatt, S. Ganesamoorthy, Indranil Bhaumik, A.K. Karnal and P. K Gupta Top seeded solution growth of stoichiometric LiNbO₃ single crystals 6^th National Laser Symposium (NLS-6), RRCAT, Dec.5-8, 2006. Indranil Bhaumik, Shailendra Kumar, S. Ganesamoorthy, A.K. Karnal P.K. Gupta & V. K. Wadhawan Single-crystal growth and photopyroelectric spectroscopy of LiTaO₃ 6^th National Laser Symposium (NLS-6), RRCAT, Dec.5-8, 2006. S. K. Sharma, Yeshpal Singh and Nilesh Bhange Birefringence interferometry: a technique to determine linear thermal expansion coefficients of anisotropic crystals National Laser Symposium-6, RRCAT, Indore, December, 5 “8, 2006, pp.61. S. K. Sharma, Yeshpal Singh and K. S. Bartwal Growth and characterization of L-lysine monohydrochloride dihydrate single crystals National Laser Symposium-6, RRCAT, Indore, December 5 “8, 2006, pp.60. Gurvinderjit Singh and V. S. Tiwari Synthesis of PLZT (9/65/35) Powder Using Gel Combustion Process 17^th Annual General Meeting of Materials Research Society of India, Lucknow University, Lucknow, 13 “ 15 February, 2006. Gurvinderjit Singh, Indranil Bhaumik, S. Ganesamoorthy, A. K. Karnal, and V. S.Tiwari Phase Transition Behaviour of 0.91Pb(Zn_1/3Nb_2/3)O₃ -0.09PbTiO₃ Single Crystal Using Polarized Light Microscopy International Symposium for Research scholar (ISRS), IIT- Madras, Chennai, December 18-20, 2006. Rachna Sangha, S. Bhattacharyya and Surya M. Gupta AC impedance analysis of Bi_3.25La_0.75Ti₃O₁₂ Ferroelectric ceramics NCRAMS Dr. Ambedkar College, Nagpur, 21-22^nd January, 2006. Rachna Sangha, S. Bhattacharyya and Surya M. Gupta Study the effect of La-doping on the electrical properties of BT by impedance spectroscopy 17^th Annual general meeting, MRSI, 13-15^th February, 2006. Surya M. Gupta Electromechanical coupling and piezoelectric coefficients of La-modified (Pb(Mg_1/3Nb_2/3)O₃)0.65-(PbTiO₃)0.35 and Pb(Zr_0.53 Ti_0.47)O₃ NSAE-06, ARDE, Pune, 5-6^th May 2006. P. K. Patro, A. R. Kulkarni, S. M. Gupta and C. S. Harendranath Explaining the effect of homogeneity on microstructure, dielectric and ferroelectric properties of strontium barium niobate NSAE-06, ARDE, Pune, 5-6^th May 2006. Pragya Pandit and S. M. Gupta Correlation among shape memory strain, ferroelastic and ferroelectric behaviour for PMN-PT System National Conference on Sensors and Actuators (NCSA-06), CGCRI, Kolkatta, Dec 21-22, 2006. S. Satapathy, Shailendra Kumar and P. K. Gupta Photoluminescence studies of Lithium Tantalate thin film DAE-BRNS - National laser Symposium, RRCAT, Indore, Dec. 2006. D. K. Kohli, R. K. Khardekar, Rashmi Singh, P. K. Gupta Glass Micro Container Based Hydrogen Storage Scheme International Workshop on Hydrogen energy, (IWHE 2006, HS 11) Page 55. 2005 R. K. Choubey. P. Sen, P. K. Sen, R. Bhatt, S. Kar, V. Shukla, K. S. Bartwal Refractive indices variation with MgO doping in LiNbO₃ crystals DAE-BRNS National Laser Symposium, BARC, Mumbai, Jan. 10-13, 2005. N. Sisodia, R. Trivedi, K.S. Bartwal, P.Sen Birefringence variation with MgO doping in LiNbO₃ DAE-BRNS National Laser Symposium, BARC, Mumbai, Jan. 10-13, 2005. K. S. Bartwal Lithium niobate structure modification on MgO doping X National Seminar on Crystal Growth, Erode, Tamil Nadu, Jan. 27-29, 2005. S. Kar, R. Bhatt, R.K. Choubey, P. Sen, K.S. Bartwal Growth of Laser Host Nd₂O₃:MgO:LiNbO₃ Single Crystals X National Seminar on Crystal Growth, Erode, Tamil Nadu, Jan. 27-29, 2005. P. Sen, N. Sisodia, R. Trivedi, R.K. Choubey, R. Bhatt, S. Kar, V. Shukla, K. S. Bartwal Variation in birefringence of lithium niobate with MgO doping concentration X National Seminar on Crystal Growth, Erode, Tamil Nadu, Jan. 27-29, 2005. K. S. Bartwal Variation in spontaneous polarization and second-order susceptibility of MgO: LiNbO₃ crystals Seminar on œNon Linear Optical Crystals & Modelling in Crystal Growth, Anna Uni. Chennai, Feb. 28- March 1 (2005). R. Bhatt, S. Kar, A.K. Singh, M.K. Tiwari, K.S. Bartwal Effect of copper ion diffusion on optical properties of LiNbO₃ crystals Conference on Crystal Growth and Crystal Technology, CGCT-3, Beijing China, Oct. 16-19, 2005. S. Kar, R. Bhatt, K. S. Bartwal Optimization of Growth parameters for Li₂B₄O₇ single crystals DAE-BRNS National Laser Symposium, VIT, Dec.7-10, 2005 R.K. Choubey, S. Kar, R. Bhatt, P. Sen, K. S. Bartwal Optical studies on Cr₂O₃ and MgO co-doped LiNbO₃ single crystals DAE-BRNS National Laser Symposium, VIT, Dec.7-10, 2005 R. Bhatt, S. Kar, S. Porwal, R.K. Choubey, P. Sen, K.S. Bartwal Optical characterization on Nd:MgO:LiNbO₃ single crystals DAE-BRNS National Laser Symposium, VIT, Dec.7-10, 2005 K. S. Bartwal Structural and Optical Characterisation of NLO and Laser Crystals 2^nd National Seminar on Laser Related Materials SSN College, Chennai, Dec. 19-20, 2005. Sunil Verma, K. Muralidhar and V. K. Wadhawan Convection and Concentration Mapping during Crystal Growth from Solution using Mach-Zehnder Interferometry and Computerized Tomography 3^rd Asian Conference on Crystal Growth & Crystal Technology (CGCT-3), Oct. 16-19, 2005, Beijing, China Sunil Verma, S. Dhawale, V. Bande, K. Muralidhar and V. K. Wadhawan Novel Optical Instrumentation and Apparatus for Studying Crystal Growth from Solution 3^rd Asian Conference on Crystal Growth & Crystal Technology (CGCT-3), Oct. 16-19, 2005, Beijing, China Sunil Verma and K. Muralidhar Double Mach-Zehnder Interferometric Technique for Simultaneous Imaging of the Hydrodynamic and Surface Kinetics during Crystal Growth from Solution 5^th National Laser Symposium, 7-10 Dec. 2005, VIT, Vellore, India, 193-194 S. Ganesamoorthy Top seeded solution growth of nonlinear optical single crystals and their characterization 2^nd National Symposium on Crystal Growth of Laser Related Materials, SSN College of Engineering, Kalavakkam, Tamilnadu, Dec. 19-20, 2005. S.Kumaragurubaran, S.Takekawa, M.Nakamura, S.Ganesamoorthy, K.Terabe and K.Kitamura Domain inversion and optical damage in Zn doped near-stoichiometric LiNbO₃ crystal Conference on Lasers and Electro Optics, Baltimore, USA, Technical Digest CMW2, (2005), pp.226-227. S. Kumaragurubaran, S.Ganesamoorthy, S.Takekawa, M.Nakamura and K.Kitamura Domain inversion field as a function of Zn and Mg concentration in near-stoichiometric LiNbO₃ International Meeting on Ferroelectricity, Brazil, September, 2005. S. Ganesamoorthy Dielectric and coercive field studies on near stoichiometric LiTaO₃ 91^st meeting on Crystal Growth and Optical Devices, 14^th April 2005, National Institute for Materials Science, Tsukuba, Japan, pp.48-54 (Invited Talk). A.Senthilkumaran, A.L.Chandru, S.Moorthybabu, Indranil Bhaumik, S.Ganesamoorthy, A.K.Karnal and V.K. Wadhawan Double tungstates Kd(WO₄)₂ and KG(WO₄)₂ for diode pumped solid state laser National Laser Symposium, BARC, Mumbai, (2005), G3. Indranil Bhaumik, S.Ganesamoorthy, R. Bhatt, A.K. Karnal and V.K.Wadhawan Effect of ionic conductivity of trivalent doping in potassium titanyl phosphate single crystals 10^th National seminar on crystal growth, Kongu Engineering College, Tamilnadu, Jan.27-29, 2005. R.Bhatt, S.Ganesamoorthy, Indranil Bhaumik, A.K.Karnal and V.K.Wadhawan Growth anisotropy in b-BaB₂O₄ single crystals 10^th National seminar on crystal growth, Kongu Engineering College, Tamilnadu, Jan.27-29, 2005. R. Bhatt, S.Ganesamoorthy, Indranil Bhaumik, A.K.Karnal, G.Bocelli, V.K.Wadhawan Growth and single crystal x-ray diffraction studies on b-BaB₂O₄ single crystals National Laser Symposium, BARC, Mumbai, (2005), G42. A.K. Karnal Cesium lithium borate: A Material for ultra violet laser generation 10^th National seminar on crystal growth, Kongu Engineering College, Tamilnadu, Jan.27-29 (2005). A.K. Karnal Progress in the growth of non-linear optical borate crystals, with emphasis on CLBO and its glassy nature National Laser Symposium-4, BARC, Mumbai, Jan 10-13 (2005) 37 (Invited Talk). A.K. Karnal, A. Saxena, V. Arora, H. Singhal, V.K.Wadhawan, H.L. Bhat and T.P.S. Nathan Growth of potassium acid phthalate crystals employing mercury encapsulant seeding and its characterization 3^rd Asian Conference on Crystal Growth and Crystal Technology, CGCT-3, Oct. 16-19, (2005) Beijing, China. S. K. Sharma and Yeshpal Singh Growth of 2.6kg KDP Single Crystal by a Novel œFlat-top Growth Technique Symposium on Crystal Growth and Characterization, Sept.29-30, 2005, Loyola College, Chennai. P. S. R. Krishna, A. B. Shinde, S. L. Narsinhan, V. S. Tiwari and G. Singh Local and Average Structures of 0.7Pb(Mg_1/3Nb_2/3)O₃ “ 0.3PbZrO₃ DAE Solid State Physics Symposium, BARC, Mumbai, December, 2005. D. K. Kohli, G. P. Mohod, C. Mukharjee, R. K. Khardekar Porous Anodic Alumina Nanostructures for Velvet Target Generation International Conference on Optoelectronic Materials and Thin Films for Advanced Technology, (OMTAT 2005). Page 147. 2004 Vijay Shukla, S. Kar Gaurav Goel Rajeev Bhatt, K. S. Bartwal SHG efficiency determination of VTE processed near stoichiometric LiNbO₃ crystals Proc. National Seminar on Crystallography (NSC “33), NCL Pune, Jan. 8-10, (2004). G. Bhagavannarayana, R.V. Anantha Murthy, G.C. Budakoti, K.S. Bartwal, B. Kumar Effect of annealing on crystalline perfection of Fe doped LiNbO₃ single crystals grown by CZ method Proc. NSC -33, NCL Pune, Jan. 8-10, (2004). G. Bhagavannarayan, G.C. Budakoti, R.V. Ananthmurthy, B. Kumar, G.C. Trigunayat, K.S. Bartwal High resolution XRD, XRT and FTIR studies on as grown and annealed Fe-doped LiNbO₃ single Crystals Proc. XXVII Annual Meeting of EMSI and conference on Electron Microscopy and Allied Fields, NPL, Delhi, April 1-3, 2004. Rajeev Bhatt, Sujan Kar, Gaurav Goel, P. Sen, K. S. Bartwal Growth of MgO doped LiNbO₃ crystal and development of broadband bulk electro-optic modulator Proc. Photonics -2004, Kochi, Dec 9-12, 2004. Indranil Bhaumik, A.K.Karnal, S. Ganesamoorthy and V.K.Wadhawan Growth of single crystals of congruent LiTaO₃ by Czochralski technique Photonics: 7th International Conference on Optoelectronics, Fiber Optics and Photonics, Cochin, December 2004. S.Ganesamoorthy, M.Nakamura, S.Takekawa, S.Kumaragurubaran, K.Terabe and K.Kitamura Domain switching characteristics of Mg doped near stoichiometric LiTaO₃ single crystals Proceedings of the 49^th symposium on synthetic crystals™, 9-10 November, 2004, NIMS, Tsukuba, Japan, pp.66-67. S.Kumaragurubaran, S.Takekawa, M.Nakamura, S.Ganesamoorthy, K.Terabe and K.Kitamura Domain switching characteristics in pure and ZnO doped near stoichiometric Li⁶NbO₃ crystals 8^th International Symposium on Ferroic Domains and Micro- to Nanoscopic Structures (ISFD-8), August 24-27, 2004, National Institute for Materials Science, Tsukuba, Japan. S.Ganesamoorthy, M.Nakamura, S.Takekawa, S.Kumaragurubaran, K.Terabe and K.Kitamura Switching characteristics in pure and Mg doped stoichiometric LiNbO₃ crystals 14^th International Conference on Crystal Growth (ICCG-14), 9-13, August 2004, Grenoble, France. G.Ravi, K.Kitamura, S.Ganesamoorthy, S.Takekawa, M.Nakamura, Y.Liu and H.Hatano Mn doped near stoichiometric LiNbO₃ crystals grown from different Li concentrated solution 14^th International Conference on Crystal Growth (ICCG-14), 9-13, August 2004, Grenoble, France. C.V.Kannan, S. Ganesamoorthy, H.Kimura, A.Miyazaki and P.Ramasamy TSSG of pure and Rh:KTP single crystals from phosphate flux and their characterization 14^th International Conference on Crystal Growth, ICCG-14, 9-13 August, 2004, Alpes Congress, Grenoble, France. Sunil Verma, K. Muralidhar and V. K. Wadhawan Shadowgraphic Tomography: A diagnostic Tool for Measuring 3-D Concentration Field Around a Growing Crystal International Workshop on Computerized Tomography, Feb. 13-15, 2004, IIT Kanpur, India A.K. Karnal Review on Inorganic, Technologically Important, Non-Linear Optical Crystals National Seminar on Growth and Characterization of Solid Materials, Department of Applied Physics, Laxminarayan Institute of Technology, Nagpur University Nov. 21-22 (2004) 1.4 S. K. Sharma, Pragya Pandit, Yeshpal Singh and V. K. Wadhawan Growth of Large Size KDP Crystal by Platform Technique, Its Characterization and Device Fabrication 33^rd National Seminar on Crystallography, NCL, Pune, January 8-10, 2004, pp.251. S. K. Sharma, Yeshpal Singh & V. K. Wadhawan Studies on the Transmission Characteristics of Home Grown KDP Crystals along Different Crystallographic Directions 33^rd National Seminar on Crystallography, NCL, Pune, January 8-10, 2004, pp.56. S. K. Sharma & V. K. Wadhawan Growth of Î±-LiIO₃crystals by precise control over solvent evaporation rate and their characterization National Laser Symposium-4, BARC, Mumbai, January, 10 “13, 2004, pp.46. S. Satapathy, K. S. Bartwal and V. K. Wadhawan Dielectric properties of Aniline doped TGS 33^rd National seminar on crystallography NCL, Pune, Jan. 8-10 (2004). V. S. Tiwari, Gurvinderjit Singh and V. K. Wadhwan Crystalline Phase Evolution in Sol-Gel Derived PMN-PZ Powder 33^rd National Seminar on Crystallography, National Chemical Laboratory, Pune, 8-10 January, 2004. Surya M. Gupta, Pragya Pandit, Pankaj Patro, Ajit R. Kulkarni and Vinod K. Wadhawan A comparative dielectric relaxation study of PMN-PT and PMN-PZ ceramics using impedance spectroscopy ISFD8, NIMS, Tsukuba, Japan 24-27^th August 2004. Vinod K. Wadhawan, Pragya Pandit & Surya M. Gupta Relaxor ferroelectrics as very smart materials ISFD8, NIMS, Tsukuba, Japan 24-27^th August 2004. Rachna Sangha, Surya M. Gupta and Vinod K. Wadhawan Randomly Oriented Bi_3.25La_0.75Ti₃O₁₂ Ferroelectric Thin Film Using Sol-Gel Technique NSFD-XIII, Delhi University, 23-25^th November 2004. Pragya Pandit Surya M. Gupta and Vinod K. Wadhawan Shape memory effect in PMN-PT 70/30 ferroelectric ceramic NSFD-XIII, Delhi University, 23-25^th November 2004 Surya M. Gupta Relaxor ferroelectrics: present understanding and future prospects 49^th Solid State Physics Symposium, SSPS2004, Guru Nanak Dev University, Amritsar, 25-30^th December, 2004. 2003 K. S. Bartwal The Effect of Cr³⁺ Ions on LiNbO₃ Crystal Lattice Proc. œ9^th National Seminar on Crystal Growth, Anna Uni. Chennai, Feb. 24-26 (2003). Sujan Kar, Rajeev Bhatt, K.S. Bartwal, V.K. Wadhawan Near Stoichiometric LiNbO₃Crystal Wafers by VTE Process Proc. œ9^th National Seminar on Crystal Growth, Anna Uni. Chennai, Feb. 24-26 (2003). S. Kotasthane, P. Sen, P.K. Sen, S. Kar, R. Bhatt, K.S. Bartwal Polarization characterization of second harmonic generation in pure and doped LiNbO₃ Proc. œ9^th National Seminar on Crystal Growth, Anna Uni. Chennai, Feb. 24-26 (2003). R. Sridhar, M. Joshi, P.P. Deshpande, K.S. Bartwal, A.S. Raja Rao, A.G. Bhujle Development of Crystal Growth Machine Proc. œ9^th National Seminar on Crystal Growth, Anna Uni. Chennai, Feb. 24-26 (2003). Vijay Shukla, K.S. Bindra, S.M.Oak, Sujan Kar, Rajeev Bhatt, K.S. Bartwal SHG Efficiency of Ba-doped lead tetra borate crystals Proc. œ9^th National Seminar on Crystal Growth, Anna Uni. Chennai, Feb. 24-26 (2003). R. Bhatt, S. Kar,V. Shukla, P. Sen, P. K. Sen, K.S. Bartwal, V.K. Wadhawan Studies on nonlinear optical properties of ferroelectric MgO -LiNbO₃ single crystals Proc. 4^th Asian Meeting on Ferroelectrics, IISc Bangalore, Dec. 12-15, 2003. S. Kar, Rajeev Bhatt, K. S. Bartwal Cu²⁺Ion Diffusion studies On Lithium Niobate Crystals Proc. DAE-BRNS Solid State Physics Symposium, Gwalior, Dec. 24-28, 2003. P. Sen,R. K. Choubey,M. Das,R. Bhatt,Kar, K. S. Bartwal Effect of MgO doping on second order susceptibility of LiNbO₃ Crystal Proc. œDAE-BRNS National Laser Symposium, IIT Kharagpur, Dec.24-26, (2003). S. Kar, Rajeev Bhatt, Gurvinderjit Singh, Gaurav Goel, K. S. Bartwal Optic axis and optic sign determination of uniaxial LiNbO₃crystal using polarizing optical microscope Proc.œDAE-BRNS National Laser Symposium, IIT Kharagpur, Dec.24-26, (2003). Rajeev Bhatt, S. Kar,K. S. Bartwal Etching studies on non-linear optical PbB₄O₇single crystal Proc.œDAE-BRNS National Laser Symposium, IIT Kharagpur, Dec.24-26, (2003). Sunil Verma, K. Muralidhar and V. K. Wadhawan Convection During The Growth of K.D.P. Crystals: Flow Visualization And Modeling 4^th Asian Meeting on Ferroelectrics (AMF-4), December 12-15, 2003, I.I.Sc., Bangalore, India, 242-243 Sunil Verma, Atul Srivastava, Vivek Prabhakar, K. Muralidhar and V. K. Wadhawan Numerical Simulation and Optical Visualization of the Solute Transport during Initial Stages of Crystal Growth from Solution 3^rd National Laser Symposium, December 22-24, 2003, I.I.T., Kharagpur, India, 274-275 Sunil Verma, K. Muralidhar and V. K. Wadhawan Experimental and Numerical Analysis of the Buoyancy-Driven Convection during Crystal Growth from Solution 46^th Solid State Physics Symposium, December 26-30, 2003, Jiwaji University, Gwalior, India, p. 42 S. Satapathy, K.S. Bartwal and V.K. Wadhawan Studies on TGS crystals doped with aniline Proc. œ9^th National Seminar on Crystal Growth, Anna Uni. Chennai, Feb. 24-26 (2003). S. Satapathy, B. N. Upadhyaya and V. K. Wadhawan Pyroelectric energy meter for variable laser pulse width Proc. DAE-BRNS National laser Symposium, IIT, Kharagpur, Dec. 22-24 (2003). A.A.S. Walia, C. K. Garg, Amit Chauhan, A. G. Bhujle, S. Satapathy and V. K. Wadhawan Microcontroller Based Programmable Laser Energy Meter Proc. œDAE-BRNS National laser Symposium, IIT, Kharagpur, Dec. 22-24 (2003). V. K. Wadhawan, Surya M. Gupta, S. K. Pathak, M. K. Jain, K. Muralidhar and V. Eswaran Preparation of thick optical blanks of zinc sulphide by the chemical vapour deposition technique Proceeding of International School on Crystal Growth of Technologically Important Electronic Materials, Edited by K. Byrappa, H. Klapper, T. Ohachi and R. Fornari, 523-534, 2003. Surya M. Gupta, Sanjib Karmakar, Sushil K. Pathak, and V. K. Wadhawan Effect of aspect ratio of CVD reactor on the nodular growth pattern of zinc sulphide ceramic NLS-2003, IIT Kharagpur, December22-24, 2003. Surya M. Gupta, N. V. Prasad and V. K. Wadhawan Impedance spectroscopy of the relaxor behaviour of P.M.N. and La-doped P.M.N.-P.T. compositions AMF-4, IISc. Bangalore, December 12-15, 2003. Surya M. Gupta , Sanjib Karmakar and V. K. Wadhawan Dielectric relaxation study of solid solution of lead magnesium niobate and La-doped bismuth titanate AMF-4, IISc. Bangalore, December 12-15, 2003. Arun Kumar, Rashmi Singh and R.K Khardekar Sol-Gel derived CaO-Na₂O-B₂O₃-SiO₂ Glass starting Materials for Laser Fusin Targets Proceedings of National Laser Symposium , Dec 22-24, 2003, IIT Kharagpur, India. D K Kohli , R. K. Khardekar, N. Ghosh, D. D. Bhawalkar Generation of Silicon Nano Particles with enhanced Photoluminescence in UV National Laser Symposium - 2003 (NLS-03) , IIT, Kharagpur, Dec., 22-24, 2003 2002 S. Kar, R. Bhatt, K.S. Bartwal, V.K. Wadhawan Growth of MgO-doped LiNbO₃ single crystals Proc. œ32^nd National Seminar on Crystallography, Jammu, Oct. 24-26 (2002). Rajeev Bhatt, Sujan Kar, K.S. Bartwal Determination of Li/Nb ratio in LiNbO₃crystals modified by vapour transport equilibration (VTE) method Proc. œDAE-BRNS National Laser Symposium, Thiruvananthapuram, Nov. 14-16 (2002). P. Sen, S. Kotasthane, P. K. Sen, S. Kar, R. Bhatt, K.S. Bartwal Optical characterization and second harmonic generation in pure and doped LiNbO₃ Proc. œDAE-BRNS National Laser Symposium, Thiruvananthapuram, Nov. 14-16 (2002). T. P. Sai, V. Shukla, M.S. Oak, S. Kar, M.K. Bhuyan, R. Bhatt, K.S. Bartwal Effect of doping on SHG efficiency of LiNbO₃ using powder technique Proc. œDAE-BRNS National Laser Symposium, Thiruvananthapuram, Nov. 14-16 (2002). Sunil Verma, S. K. Sharma and V. K. Wadhawan Supersaturation Dependent Growth Kinetics of Pyramidal Face of KDP Crystal Proc. of the 13^th MRSI, 7-9 February 2002, Defense Metallurgical Research Laboratory, Hyderabad, India, p. 8 S. K. Sharma, Sunil Verma and V. K. Wadhawan Influence of pH on the Growth Kinetics of Prismatic and Pyramidal Faces of KDP Crystal Proc. of 13^th MRSI, 7-9 February 2002, Defense Metallurgical Research Laboratory, Hyderabad, India, p. 9 Sunil Verma, S. K. Sharma, K. Muralidhar, V. K. Wadhawan and D. D. Bhawalkar Optical Imaging of Crystal Growth Process Solid State Physics (India), 45 (2002) 119-120 S. K. Sharma, Sunil Verma and V. K. Wadhawan Optical Technique for Measurement of the Saturation Temperature of the Solution and Its Implication for TGS Growth Kinetics Solid State Physics (India), 45 (2002) 143-144 S. Satapathy, B. N. Upadhyaya and V. K. Wadhawan Design, Fabrication and testing of an energy meter based on the pyroelectric effect in TGS crystals National conference on sensor technology, DRDO, New Delhi (Sept 26-27,2002). S. Satapathy, K. S. Bartwal, and V. K. Wadhawan Growth and characterization of aniline-doped triglycine sulphate single crystals DAE-BRNS National Laser Symposium, Thiruvananthapuram, Nov. 14-16 (2002). Gurvinderjit Singh, V.S. Tiwari and V.K. Wadhawan Transparent PLZT for Electro-optic Applications 13^th Annual General Meeting of Materials Research Society of India, DMRL, Hyderabad, 7 “ 9 February, 2002. Gurvinderjit Singh, Indraneel Bhaumik, S. Ganesamoorty, V.S. Tiwari and V. K. Wadhawan Thermal and Dielectric Spectroscopy Study on Poled and Unpoled 0.91PZN-0.09PT Single Crystals Grown by Flux Method Twelveth national Seminar on Ferroelectrics and Dielectrics, Indian Institute of Sciences, Bangalore, 16-18 December, 2002. Gurvinderjit Singh, V.S. Tiwari, Arun Kumar and V.K. Wadhawan Specific Heat Behaviour of (1-x)PbMg_1/3Nb_2/3O₃-x PbZrO₃ Relaxor Ferroelectri Ceramic DAE Solid State Physics Symposium, Panjab University, Chandigarh, 26-30 December, 2002. Indraneel Bhaumik, Gurvinderjit Singh, S. Ganesamoorty, S. M. Gupta, V.S. Tiwari and V. K. Wadhawan Phase Transition Behaviour in 0.65PMN-0.35PT Single Crystal Grown by Flux Method DAE Solid State Physics Symposium, Panjab University, Chandigarh, 26-30 December, 2002. N. V. Prasad, S. Karmakar, Surya M. Gupta, and V. K. Wadhawan Impedance spectroscopy to study relaxor behaviour in La-doped lead magnesium niobate-lead titanate solid solution MRSI 13th AGM meeting, DMRL Hyderabad, February 8-10, 2002. Surya M. Gupta , Sushil K. Pathak Mahaveer K. Jain, and V. K. Wadhawan Preparation of transparent zinc sulphide ceramic using chemical vapour deposition for infrared optics DAE-BRNS National Laser Symposium, NLS-2002, Thiruvananthapuram, Nov. 14-16, 2002. Surya M. Gupta, Mahaveer K. Jain, Sushil K. Pathak, and V. K. Wadhawan Growth of transparent bulk zinc sulphide ceramic using CVD technique 45^th DAE Solid State Physics Symposium “2002, Punjab University, 26-30 December 2002. Indranil Bhaumik, Gurvinderjit Singh, S. Ganesamoorthy, Surya M. Gupta, V. S. Tiwari, and V. K. Wadhawan Phase transition behaviour of 0.65PMN-0.35PT single crystal grown by flux technique 45^th DAE Solid State Physics Symposium “2002, Punjab University, 26-30 December 2002. Surya M. Gupta Ferroelectric Random Access Memories National Seminar on Ferroelectrics and Dielectrics, NSFD-XII, IISc., Bangalore, Dec. 16-18 2002. Rashmi Singh, R.K Khardekar, G.P Mohod, V.K Vadhawan Develpoment of Resorcinol-Formaldehyde Aerogels by Fast Gelation Technique for Laser Fusin Targets Applications National Laser Symposium, Trivendrum 2002. Manoj Kumar, R Sridhar, C Gupta, D K Kohli, A K Nath On-Line Power Monitoring for High Power CW CO2 Laser National Laser Symposium - 2002 (NLS-02) , SCTIMST, Thiruvanathapuram, Nov., 14-16, 2002 2001 K.S. Bartwal, R. Bhatt, S. Kar, V.K. Wadhawan Growth and Characterization of Undoped and Cr- doped LiNbO₃ Single Crystals Proc. œInternational workshop on Preparation and Characterization of Technologically Important Single Crystals NPL, New Delhi, Feb. 26-28 (2001). K.S. Bartwal Role of Crystals in High Technology Areas Proc. œVISION “2001, One-day Conference on Frontier Areas of Science Engineering and Technology B.H.U. Varanasi, May 6 (2001). S. Kar, R. Bhatt, K.S. Bartwal, V. K. Wadhawan Growth of Lithium Tetraborate Single Crystals Proc. œXXXI National Seminar on Crystallography BARC, Mumbai, June 19-22 (2001). K.S. Bartwal, R. Bhatt, S. Kar, V.K. Wadhawan Fluorescence Studies on Cr³⁺ : LiNbO₃ Single Crystals Proc. œDAE-BRNS National Laser Symposium, CAT, Indore, Dec.19-21 (2001). R. Bhatt, S. Kar, K.S. Bartwal Growth and Etching Studies of LiNbO₃ Single Crystals Proc. œDAE-BRNS National Laser Symposium, CAT, Indore, Dec.19-21 (2001). Sunil Verma, K. Muralidhar and V. K. Wadhawan Visualization of the Convective Field Around a Growing KDP Crystal by the Laser Shadowgraph Technique 1^st National Laser Symposium, 19-21 December 2001, Centre for Advanced Technology, Indore, India, 177-178 Sunil Verma, K. Muralidhar, V. K. Wadhawan and D. D. Bhawalkar Laser Interferometric Tomography for Studying Solutal Transport and Surface Kinetics of Crystals Growing from Aqueous Solution 1^st National Laser Symposium, 19-21 December 2001, Centre for Advanced Technology, Indore, India, 175-176 S. K. Sharma, Sunil Verma, B. B. Shrivastava and V. K. Wadhawan Growth Rate Measurements on the Prismatic Face (100) of KDP Crystal by the Laser-Polarization-Interference Technique 1^st National Laser Symposium, 19-21 December 2001, Centre for Advanced Technology, Indore, India, 401-402 S. Satapathy, A. K. Karnal and V. K. Wadhawan Effect of seed orientation on growth of TGS crystals by platform technique National seminal on crystallography, BARC, Mumbai (June 19 “22, 2001). S. K. Sharma, A. K. Karnal and V. K. Wadhawan Growth of a- LiIO₃ Crystals Using Platform Technique DAE-BRNS National Laser Symposium, CAT, Indore, December 19-21, 2001, pp.119-120. S. Ganesamoorthy, Indranil Bhaumik, A. K. Karnal and V. K. Wadhawan Thermal and luminescence studies on PbWO₄ single crystals grown by Cz. Method National Laser Symposium, University of Kerala, November 14-16, 2002, pp.457-458. Indranil Bhaumik, S.Ganesamoorthy, R.N.Rai, A.K.Karnal and V.K.Wadhawan Growth of low temperature phase of KY(WO₄)₂ crystals by the flux method DAE-BRNS National Laser Symposium, University of Kerala, Thiruvanathapuram, November 14-16, 2002, pp.459-460. C.V.Kannan, S.Ganesamoorthy, C.Subramanian and P.Ramasamy Effect of chromium on structural and optical properties of KTiOPO₄ crystals National Laser Symposium, University of Kerala, November 14-16, 2002, pp.480-482. C.V.Kannan, S.Ganesamoorthy, C.Subramanian and P.Ramasamy Growth and electrical characterization of Lithium Tri Borate (LiB₃O₅) single crystals Fourteenth American Conference on Crystal Growth and Epitaxy, August 4 “ 9, 2002, Seattle, Washington, USA. S. Ganesamoorthy, R. Bhatt, Indranil Bhaumik, A.K. Karnal and V.K. Wadhawan High temperature solution growth of b-BaB₂O₄ single crystals from Na₂O flux and their characterization DAE-BRNS National Laser Symposium, CAT, Indore, December 19-21, 2001, pp.115-116. Indranil Bhaumik, S.Ganesamoorthy, R.Bhatt, A.K.Karnal, R.Sundar and V.K. Wadhawan Fabrication and performance study on SHG cells using KTiOPO₄ single crystals grown by the TSSG technique National Laser Symposium, CAT, Indore, December 19-21, 2001, pp.117-118. C.V. Kannan, S. Ganesamoorthy, C. Subramanian and P. Ramasamy Top seeded solution growth and ferroelectric studies of RbTiOPO₄ single crystals and fabrication of SHG devicesDAE-BRNS National Laser Symposium, CAT, Indore, December 19-21, 2001, pp.125-126. S.Ganesamoorthy, Indranil Bhaumik, A.K.Karnal and V.K.Wadhawan Growth and characterization of stoichiometric single crystals of PbWO₄ ICCG-13, The Thirteenth International conference on Crystal Growth, 30 July “ 4 August, 2001, Doshisha University, Kyoto, Japan. Indranil Bhaumik, S.Ganesamoorthy, R.Bhatt and V.K.Wadhawan Growth and characterization of inclusion free KTiOPO₄ single crystals from <010> seed ICCG-13, The Thirteenth International conference on Crystal Growth, 30 July “ 4 August, 2001, Doshisha University, Kyoto, Japan. C.V.Kannan, S.Ganesamoorthy, V.Kannan, C.Subramanian and P.Ramasamy TSSG growth, electrical and optical studies on RbTiOPO₄ single crystal and their comparison with KTiOPO₄ ICCG-13, The Thirteenth International conference on Crystal Growth, 30 July “ 4 August, 2001, Doshisha University, Kyoto, Japan. C.V.Kannan, S.Ganesamoorthy, C.Subramanian and P.Ramasamy Growth and characterization of Chromium doped KTP single crystals International conference on Materials for Advanced Technology-2001 (ICMAT-2001), July 01-06, 2001, National University of Singapore, Singapore. Surya M. Gupta & V. K. Wadhawan Phase transitions in the ferroelectric bismuth titanate family of crystals 31^st National Seminar on Crystallography, BARC, June 19-22, 2001. Surya M. Gupta, Sanjib Karmakar, Pankaj Misra, L. M. Kukreja & V. K. Wadhawan Leakage current behaviour of lanthanum doped bismuth titanate film prepared by pulsed laser deposition technique DAE-BRNS Topical Meeting on Pulse Laser Deposition of Thin Films (PLD-2001), CAT, November 26-28, 2001. Surya M. Gupta, N. V. Prasad, V. K. Wadhawan and D. Viehland Rhombohedral to tetragonal ferroelectric phase transition in Pb[(Mg_1/3Nb_2/3)_0.65 Ti_0.35)]O₃ DAE Solid State Physics Symposium, BARC, December 26-30, 2001. D. K. Agrawal, Sabir Ali, D.K.Kohli, R.Khare, T P S Nathan Thin Foil Sensor Laser Power Meter : For 1mW “ 10 Watt Power Range 1^st National Laser Symposium, 2001. CAT Indore, Page 144. 2000 K.S. Bartwal Growth of Undoped and Ba-doped Lead Tetraborate Single Crystals Proc. œSymposium on Crystal Growth of Laser Related Materials Anna Uni. Chennai, Aug. 7- 8 (2000). R. Bhatt, S. Kar, K.S. Bartwal Growth of Optical Quality Lithium Niobate Single Crystals Proc. œSymposium on Crystal Growth of Laser Related Materials Anna Uni. Chennai, Aug. 7- 8 (2000). I. Bhaumik, S. Kar, K.S. Bartwal, V.K. Wadhawan Growth of Lead Tetraborate Single Crystals Proc. œSymposium on Crystal Growth of Laser Related Materials Anna Uni. Chennai, Aug. 7- 8 (2000). C.V.Kannan, S.Ganesamoorthy, V.Kannan, P.S.Raghavan, C.Subramanian and P.Ramasamy Growth of RTP single crystals from phosphate fluxes The First Asian Conference on Crystal Growth and Crystal Technology, August 29 “ September 1, 2000, Sendai, Japan. C.V.Kannan, S.Ganesamoorthy, P.S.Raghavan, .Subramanian Top seeded solution growth of RbTiOPO₄ crystals from phosphate fluxes Symposium on Crystal Growth of Laser Related Materials, Aug.7-8, 2000, Crystal Growth Centre, Chennai. S. K. Sharma, S. Sathapathy, A. Saxena, A. K. Karnal and V. K. Wadhawan Growth of KDP Crystals at the Rate of 7-12 mm/day by Conventional Technique Symposium on Crystal Growth of Laser Related Materials, Anna University, Chennai, August 7-8, 2000, pp 25. S. K. Sharma, A. Saxena, A. K. Karnal, Yeshpal Singh and V. K. Wadhawan Growth of Large Size KDP Crystals, Their Characterisation, Device Fabrication and Testing National Laser Symposium, LASTEC, Delhi, December 13-15, 2000, pp.27. S. Satapathy, A. K. Karnal and V. K. Wadhawan Growth of TGS crystals using platform technique Growth of laser related material symposium, Crystal growth centre, Anna University, Chennai (7-8 August 2000). Rama Chari, Prateek Jain, S. K. Sharma, A. K. Karnal, S. M. Oak Group Velocity Walk-Off Measurement of KDP Crystals National Laser Symposium, LASTEC, Delhi, December 13-15, 2000, pp.5. A.G. Castellanos-Guzman, M. Czank, Arun Kumar, Gurvinderjit Singh, V.S. Tiwari and V.K. Wadhawan Calorimetric, Optical and Electron Microscopy Studies of Co₃B₇O₁₃Cl Ferroelectric- Ferroelastic Boracites Sixth International Symposium on Ferroic Domains and Mesoscopic structure, Nanjing University, Nanjing -210093, China, May 29-June 02, 2000. Gurvinderjit Singh, V.S. Tiwari and V.K. Wadhawan Dielectric Relaxation in (1-x)PbMg_1/3Nb_2/3O₃ “ x PbZrO₃ Ceramic Eleventh national Seminar on Ferroelectrics and Dielectrics, University of Jammu, Jammu “ 180006, 01-03 November, 2000. Gurvinderjit Singh, V.S. Tiwari, Arun Kumar and V.K. Wadhawan Dielectric and Heat Capacity Studies on PMN-PZ [(1-x)PbMg_1/3Nb_2/3O₃ “ x PbZrO₃] Ceramic DAE Solid State Physics Symposium, Guru Ghasidas University, Bilaspur “ 495009, 27-31 December, 2000. Sensor Characterization of the 1-Watt Hand Held Laser Power Meter D K Kohli, P K Mukhopadhyay, Jogy George, Viraj P Bhanage, A G Bhujle, T P S Nathan National Laser Symposium - 2000 (NLS-2000), LASTEC, Delhi, Dec., 13-15, 2000, p. 270 1999 K.S. Bartwal Growth and Characterization of Optical and Laser Crystals Invited Talk, œ86^th Indian Science Congress, Chennai, Jan. 3-7 (1999). K.S. Bartwal Lithium Niobate Crystal Growth “ Recent Developments Proc. œ8^th National Seminar on Crystal Growth Anna Uni. Chennai, Feb. 3-5 (1999). Sunil Verma, M. K. Singh and V. K. Wadhawan Theoretical and Experimental Investigations on the Growth Morphology of Zinc Tris (Thiourea) Sulphate Crystals Solid State Physics (India), 42 (1999) 215-216 M. K. Singh, Sunil Verma and V. K. Wadhawan A Computer Code for Calculating the Bulk and Slice Cohesive Energies of Crystals Solid State Physics (India), 42 (1999) 213-214 R. Bhatt, A.K. Singh, Sujan kar, K.S. Bartwal Growth and Characterization of LiNbO₃ crystals Proc. œ8^th National Seminar on Crystal Growth Anna Uni. Chennai, Feb. 3-5 (1999). I. Bhaumik, A.K. Singh, K.S. Bartwal, V.K. Wadhawan Optical and Structural Characteristics of PbB₄O₇ Crystals Proc. œ8^th National Seminar on Crystal Growth Anna Uni. Chennai, Feb. 3-5 (1999). S. Ganesamoorthy, C. V. Kannan, C. Subramanian and P. Ramasamy Growth of non-linear optical crystal KTiOPO₄ from high temperature solution and its characterization International Conference on Laser Materials and Devices-99, (ICLMD-99), Defence Science Centre, New Delhi, Dec. 08-10, 1999, pp.87-90. C.V. Kannan, S.Ganesamoorthy, C. Subramanian and P. Ramasamy Growth and Characterisation of RbTiOPO₄ single crystals International Conference on Laser Materials and Devices-99, (ICLMD-99), Defence Science Centre, New Delhi, December 08-10, 1999, pp.124-127. C.V.Kannan, S.Ganesamoorthy, F.J.Kumar, C.Subramanian, P.Ramasamy TSSG growth and characterisation of KTP crystals with different seed orientations XI American Conference on Crystal Growth and Epitaxy, August 02-06, 1999, Tucson, Arizona, USA. C.V.Kannan, S.Ganesamoorthy, C.Subramanian and P.Ramasamy Growth and characterisation of KTiOPO₄ single Crystals National Seminar on Recent Trends in Material Science, May 3, 1999, Alagappa University, Karaikudi, TamilNadu. S.Ganesamoorthy, C.V.Kannan, C.Subramanian and P.Ramasamy Effect of seed orientation in the growth of KTiOPO₄ single crystals VIII National seminar on Crystal Growth, Feb.03-05, 1999, Crystal Growth Centre, Anna University, Chennai. C.V.Kannan, S.Ganesamoorthy, C.Subramanian and P.Ramasamy Growth and characterisation of rubidium titanyl phosphate single crystals VIII National Seminar on Crystal Growth, Feb.03-05, 1999, Crystal growth Centre,, Chennai. S. K. Sharma, A. Saxena, Arun Kumar, Yeshpal Singh, H. O. Mahawar, A. K. Karnal, and V. K. Wadhawan Growth, Characterization and Processing of KDP Crystals: Technology Development from Chemical Synthesis to Device Fabrication and Testing 10th AGM-MRSI, RRL, Bhopal February 8-10, 1999, pp.31. Arun Kumar, V.S. Tiwari, Deepa Nigam and V.K. Wadhawan Effect of Atmosphere on the Pyrolysis Behaviour of Lead Zirconate Titanate Gel Tenth Annual General Meeting of Materials Research Society of India, Regional Research Laboratory, Bhopal, 8-10 February, 1999. A.G. Castellanos-Guzman, J.Reyes-Gomez, M.Czank, Arun Kumar, Gurvindergit Singh, V.S. Tiwari and V.K. Wadhawan Calorimetric, Optical, and Anti-Phase Domain Studies on Ferroelectric-Ferroelastic Ni₃B₇O₁₃Cl Boracite 9^th European Meeting on Ferroelectricity, Prague, Czech. Republic, 12-16 July, 1999. Gurvinderjit Singh, V. S. Tiwari, A. K. Karnal, Sunil Verma and V. K. Wadhawan Preparation of Lead Magnesium Niobate-Lead Titanate Ceramic with a Dielectric Constant as High as 18000 Proc. of 10^th MRSI, 8-10 February 1999, Regional Research Laboratory, Bhopal, India Gurvinderjit Singh, V.S. Tiwari and V.K. Wadhawan A Study of the Frequency Dependance of the Dielectric Maximum in PMN-PT Ceramic XVIIIth International Union of Crystallography Congress and General Assembly, Glasgow, Scotland, U.K., 4-13 August 1999. Gurvinderjit Singh, V.S. Tiwari and V.K. Wadhawan Effect of Average Grain Size on Relaxational Behaviour of PMN-PT DAE Solid State Symposium, IGCAR, Kalpakkam, 20-24 December 1999. D K Kohli , P K Mukhopadhyay, Jogy George, S K Sharma, R Kapoor, T P S Nathan Measurement of st Product of Nd:KGW Crystal by Laser Comparison Method National Laser Symposium - 1999 (NLS-99) , University of Hyderabad, Hyderabad, Dec., 15-17, 1999, p. 112 Jogy George, P K Mukhopadhyay, D K Kohli, S K Sharma, R Kapoor, T P S Nathan Measurement of Thermal Lens in Nd:KGW and Nd:GdVO₄ Crystal National Laser Symposium - 1999 (NLS-99) , Dec., 15-17, 1999, p. 106 1998 S. Ganesamoorthy, C.V. Kannan, C. Subramanian and P. Ramasamy Growth and Morphology studies on TSSG grown KTiOPO₄ by AFM and SEM National Laser Symposium, Indian Institute of Technology, Kanpur, (1998), pp.33. S.Ganesamoorthy, C.V.Kannan, C.Subramanian and P.Ramasamy Observation of ferroelectric domains in lead titanate crystals by scanning electron microscope XXIII Conference on Electron Microscopy, Nov.08-10, 1998, Centre for Cellular and Molecular Biology, Hyderabad. S.Ganesamoorthy, C.V. Kannan, C. Subramanian and P. Ramasamy Flux growth and properties of RbTiOPO₄ International Union of Material Research Society-International Conference in Asia '98 (IUMRS-ICA), October 13-16, 1998, Indian Institute of Science, Bangalore. S.Ganesamoorthy, F. Josephkumar, C. Subramanian and P. Ramasamy Growth of lead calcium titanate single crystals and their characterization Ninth annual general meeting of Materials Research Society of India, February 22-25, 1998, IIT, Chennai. S. M. Gupta, E. Furman, E. Colla, Z. Xu and D. Viehland Relaxor dielectric characteristics in polar dielectric barium magnesium niobate 100th American Ceramic Conference at Cincinnati, Ohio, May 3-6, 1998. E. V. Colla, S. M. Gupta, D. Viehland AC-field effect on the freezing temperature of relaxor ferroelectrics 100th American Ceramic Conference at Cincinnati, Ohio, May 3-6, 1998. Surya M. Gupta, J. F. Li, D. Viehland PMN-PT based materials with high electromechanical coupling & piezoelectric coefficients & minimal hysteretic loss for transducer applications 100th American Ceramic Conference at Cincinnati, Ohio, May 3-6, 1998. Rashmi Singh, R. K Khardekar, K.K Mishra and H.C Pant Surface characterization of spherical microballon targets by atomic force microscopy Plasma-1998, XII National Symposium on Plasma Science and Technology Sabir Ali, D K Kohli , T P S Nathan, S S Marahas, K P Maheshwari Development of Gold “ Indium Seal for Sealed Off CO₂ Laser Proceedings of National Laser Symposium, 1998. Page 1/L “ F. 1997 Santa Chawla, Ram Narain, K.S. Bartwal, V.K. Wadhawan Nonlinear Optical Properties of KDP Crystal in Cavity Less Hybrid Configuration Proc. œVII National Laser Symposium CAT, Indore, Feb.6 - 8 (1997). K.S. Bartwal, V.K. Wadhawan Lead Tetraborate- Crystal Growth and Properties Proc. œVIII National Laser Symposium PRL, Ahmedabad, Dec. 10-12 (1997). S. Ganesamoorthy, F. Joseph Kumar, S. Balakumar, C.Subramanian and P.Ramasamy Optical, AFM studies on Ferroelectric Domains in PbTiO₃ single crystals DAE Solid State Physics Symposium, Cochin, Vol.40C, (1997), pp.354. S. Ganesamoorthy, F. Joseph Kumar, C. Subramanian and P. Ramasamy Effect of seed orientation on the top seeded solution growth of KTiOPO₄ National Laser Symposium, Physical Research Laboratory, Ahmedabad, (1997), pp.266. S. Ganesamoorthy, F. Joseph Kumar and C. Subramanian Growth of KTiOPO₄ single crystals by TSSG National Laser Symposium, Center for Advanced Technology, Indore, (1997), pp.201. S.Ganesamoorthy, F. Joseph Kumar and C. Subramanian Growth of KTiOPO₄ single crystals by top seeded solution growth 9^th international meeting on Ferroelectricity, August 24-29, 1997, Seoul, Korea. Surya M. Gupta, and Dwight Viehland Electromechanical and Piezoelectrical properties of La-doped Lead Magnesium Niobate-Lead Titanate Compositions Close to the Morphotropic Phase Boundary 99th American Ceramic Conference at Cincinnati, Ohio, May 4-7, 1997. E. V. Colla, Surya M. Gupta, and Dwight Viehland Nonlinear properties of the PMN-PT solid solution: Ceramics and Single crystals study 99th American Ceramic Conference at Cincinnati, Ohio, May 4-7, 1997. E. V. Colla, Surya M. Gupta, and Dwight Viehland Nonlinear dielectric properties of PMN-PT solid solution ceramics and single crystal 9^th International conference on ferroelectricity, Seoul, South Korea, 24-29th August, 1997. D K Kohli , Viraj P Bhanage, Vinod Kumar K M, D K Agrawal, A G Bhujle, T P S Nathan Hand Held Lased Power Meter “ 100 Watt Range National Laser Symposium - 1997 (NLS-97), PRL, Ahmedabad, Dec., 10-12, 1997 D K Kohli , Sabir Ali, T P S Nathan Flexible Hollow Fiber for Surgical CO₂ Laser National Laser Symposium - 1997 (NLS-97), CAT, Indore, Feb., 6-8, 1997 1996 K.S. Bartwal, Arun Kumar, O.N. Srivastava Growth and Characterization of ZnSe Single Crystals Proc. œXXVIII National Seminar on Crystallography B.H.U., Varanasi, Jan. 31 - Feb. 2 (1996). K.S. Bartwal, V.S. Tiwari, V.K. Wadhawan, O.N. Srivastava Growth and Characterization of PMN Single Crystals Proc. œXXVIII National Seminar on Crystallography B.H.U., Varanasi, Jan. 31 - Feb. 2 (1996). S. Ganesamoorthy, F. Joseph Kumar and C. Subramanian Top seeded solution growth of KTiOPO₄ DAE Solid State Physics Symposium, BARC, Mumbai, Vol.39C, (1996), pp.275. S.Balakumar, J.X.Ma, S.Ganesamoorthy, J.B.Xu, I.Wilson Ferroelectric domains in BaTiO₃ single crystals: AFM investigation Atomic Resolution Microscopy of Surfaces and Interfaces - MRSI meeting, December 3-5, 1996, Boston. S.Ganesamoorthy, R. Varatharajan, S. Balakumar, and C. Subramanian Growth and characterization of lead calcium titanate single crystals American Conference on Crystal Growth, July 1, 1996. S.Ganesamoorthy, F. Joseph Kumar and C. Subramanian Growth and characterization of KTP single crystals from modified flux XXIII National Symposium of the optical society of India on Optics and Opto-electronics, March 14-16, 1996, Instruments Research and Development Establishment, Dehra Dun. S.Ganesamoorthy, R.Varatharajan, S.Balakumar and C.Subramanian Flux growth of lead calcium titanate single crystals National Conference on Fundamentals of Crystal Growth, January 29-30, 1996, Crystal Growth Center, Chennai. C.Subramanian, F.J.Kumar and S.Ganesamoorthy Growth and characterization of nonlinear crystals with special reference to KTP National Conference on Fundamentals of Crystal Growth, Jan.29-30, 1996, Crystal Growth Center, Chennai. S.Ganesamoorthy, S.Balakumar, F.J.Kumar and C.Subramanian Flux growth of lead calcium titanate single crystals National Conference on Fundamentals of Crystal Growth, January 29-30, 1996, Crystal Growth Center, Chennai. Arun Kumar, V.S. Tiwari , B.Q.Khattak, V.K.Wadhawan and Dhananjai Pandey Preparation and Characterization of PZT by Sol-Gel and Semi-Sol-Gel Techniques XXVII National Seminar on Crystallography, Banaras Hindu University, Varanasi, 31 January- 2 February, 1996. K.S. Bartwal, V.S. Tiwari, V.K. Wadhawan and O.N. Srivastava Growth and Characterization of Pb(Mg _1/3Nb_2/3 )O₃ Single Crystals XXVII National Seminar on Crystallography, Banaras Hindu University, Varanasi, 31 Jan. - 2 February, 1996. V.S. Tiwari, Arun Kumar, V.K. Wadhawan and Dhananjai Pandey Kinetics of Formation of the Pyrochlore Phase in Powders of Sol-Gel Derived PZT IX National Seminar on Ferroelectrics and Dielectrics, National Physical Laboratory, New Delhi, 8 -11 October, 1996. Surya M. Gupta, Z. Xu and Dwight Viehland Development of High Electrically Induced Strain And Low Hysteric Loss Compositions For Actuators International. Conference on the Application of Ferroelectrics at Rutgers University New Jersey, Aug 18-21, 1996. Y V S T Sai, S Krishnaswamy, D K Kohli , Sabir Ali, T P S Nathan Self Calibrating Laser Power Meter Proceedings of National Laser Symposium, 1996. Page C“27 D K Kohli , T P S Nathan, Sabir Ali, D K Agrawal 5-kWatt Laser Power Meter Development Proceedings of National Laser Symposium, 1996. Page C“25. 1995 V.S. Tiwari and V.K. Wadhawan Design, Fabrication and Testing of a Pockels Cell using Two KDP Crystals in Tandem National Laser Symposium, Instruments Research and Development Establishment, Deharadun, 10 - 14 February, 1995. Gargi Vishnoi, Sunil Verma, T. C. Goel and P. K. C. Pillai Optical Fiber Chemical Sensing Based on Evanescent Wave Absorption Using Tapered Fiber 22^nd National Conference on Optical Communication, 22-24 February 1995, University of Allahabad, India, 188-192 S. Ganesamoorthy, S. Balakumar, R. Ilangovan and C. Subramanian Preparation, phase transition and domain structure on Pb_1-xCa_xTiO₃ single crystals DAE Solid State Physics Symposium, Calcutta, Vol.38C,(1995), pp.374. S. Balakumar, S. Ganesamoorthy, R. Ilangovan and C. Subramanian X-ray diffraction studies on BST single crystal, DAE Solid State Physics Symposium Calcutta, Vol.38C, (1995), pp. 375. F. Joseph Kumar, S.Ganesamoorthy, D. Jayaraman and C. Subramanian Determination of interfacial energy of KTP-K₆P₄O₁₃ solution by hot stage microscopy DAE Solid State Physics Symposium, Calcutta, Vol.38C, (1995), pp. 405. S. Balakumar, R. Ilangovan, S.Ganesamoorthy and C.Subramanian BST single crystals: Preparation, morphology and X-ray diffraction studies 8^th European meeting on Ferroelectricity, July 4-8 1995, Nijmegan, Netherlands. S. Balakumar, R. Ilangovan, S.Ganesamoorthy and C. Subramanian Growth aspects of PbTiO₃ single crystals 8^th European meeting on Ferroelectricity, July 4-8 1995, Nijmegan, Netherlands. S. Balakumar, S.Ganesamoorthy, R. Ilangovan, and C.Subramanian Growth of PbTiO₃ and PbCaTiO₃ single crystals XI International Conference on Crystal Growth, June 18-23, 1995, Hague, Netherlands. F. Joseph Kumar, S.Ganesamoorthy, D. Jayaraman and C. Subramanian Crystallization studies of KTiOPO₄ and its isomorph by hot stage microscopy XI International Conference on Crystal Growth, June 18-23, 1995, Hague, Netherlands. S. Balakumar, S.Ganesamoorthy, R. Ilangovan, and C. Subramanian Growth, domain structure and X-ray diffraction studies on PbTiO₃ and Pb_1-xCa_xTiO₃ single crystals Sixth National Seminar on Crystal Growth, February 2-4, 1995, Crystal Growth Centre, Anna University, Chennai F.Joseph Kumar, S.Ganesamoorthy, D. Jayaraman and C. Subramanian Nucleation and growth kinetics of KTiOPO₄ crystallizing from K₆P₄O₁₃ solution 6^th National Seminar on Crystal Growth, Feb.2-4, 1995, Crystal Growth Centre, Chennai. F. Joseph Kumar, S.Ganesamoorthy, D. Jayaraman and C. Subramanian Hot stage microscopic study of nucleation of KTiOPO₄ crystallizing from high temperature solution XXVI National Seminar on Crystallography, January 16-18, 1995, Mysore. R. Ilangovan, S.Ganesamoorthy, S. Balakumar, and C. Subramanian Growth and characterization of potassium niobate single crystals XXVI National Seminar on Crystallography, January16-18, 1995, Mysore. 1994 K.S. Bartwal Growth of Device Quality LiNbO₃ Single Crystals Proc. œV National Laser Symposium C.A.T., Indore, Jan. 29- Feb.1 (1994). R.V.A. Murthy, K.S. Bartwal, S.N.N. Goswami, K. Lal Growth of Well Characterized Single Domain Fe-Doped Lithium Niobate Single Crystals Proc. œMRSI Annual Meeting Hyderabad, Feb.7 - 9 (1994). V.S. Tiwari and V.K. Wadhawan Design, Fabrication and Testing of a Longitudinal-Mode Electro-Optic Modulator Using KDP Crystal National Laser Symposium, Centre for Advanced Technology, Indore, 29 January- 1 February, 1994. S. Balakumar, R. Ilangovan, S.Ganesamoorthy and C. Subramanian Growth of Sr substituted BaTiO₃ single crystals 8^th National seminar on Ferroelectric and Dielectrics, October 23-25, 1994, Nagpur S. Balakumar, R. Ilangovan, S.Ganesamoorthy and C. Subramanian Growth of PbTiO₃ and PbCaTiO₃ single crystals 8^th National seminar on Ferroelectric and Dielectrics October 23-25, 1994, Nagpur. Gupta S.M. and Kulkarni A.R. Synthesis of Lead Magnesium Niobate via Partial Oxalate Route and its Dielectric Behavior 57^th Annual Conference of Indian Ceramic Society, N. Delhi, India, Jan. 1994. Gupta S.M., Bedekar P.R., and Kulkarni A.R. Synthesis, Dielectric and Microstructure Studies of Lead Magnesium Niobate Stabilized Using Lead Titanate National Conference on Ferroelectric and Dielectrics, Nagpur, Oct. 1994. 1993 R.V.A. Murthy, K.S. Bartwal, Krishan Lal Growth of Single Domain Nearly Perfect Crystals of Lithium Niobate Proc. XVI Congress and General Assembly of the International Union of Crystallography, Beijing, Aug. 21 “ 29 (1993). Kulkarni A. R. and Gupta S.M. Lead Based Relaxors for Multilayer Capacitors SEC 1993 (Oct 14-15) B.A.R.C., Bombay (1993). V.S. Tiwari and V.K. Wadhawan Design and Fabrication of Pockels Cell Using KDP Crystal Fifth National Seminar on Crystal Growth, Anna University, Madras, 18-20 November, 1993. U.N. Roy, G. Dhanaraj, V.S. Tiwari and V. K. Wadhawan Crystal Growth and Characterization of Nonlinear Optical Mixed System of KH₂PO₄with H₃BO₃ National Laser Symposium, Madras, 1993. 1992 R.V.A. Murthy, K.S. Bartwal, S.N.N. Goswami, K. Lal Growth and Characterization of Nearly Perfect LiNbO₃ Crystals in an Indigenously Developed Crystal Growth System Proc. œXXIII National Seminar on Crystallography M.R. Engg. College, Jaipur, March 23 - 25 (1992). Dhananjai Pandey, Neelam Singh and V.S. Tiwari On the Absence of Thermodynamic Phase Transition in Dirty Displacive Ferroelectrics Seventh National Seminar on Ferroelectrics and Dielectrics, Department of Physics, Hemwatinandan Bahuguna Garhwal Universty, Srinagar - 246 174, 3 - 5 October, 1992. Gupta S.M. and Kulkarni A.R Optimization of Process Parameters in Lead Magnesium Niobate 56^th Annual Conference of Indian Ceramic Society, Bangalore, India, Dec. 1992. Gupta S.M. and Kulkarni A.R. Effect of Barium Titanate on the Synthesis and Dielectric Properties of Lead Magnesium Niobate 3^rd Annual meeting of Materials Research Society of India, Bangalore, India, Feb. 1992. 1991 R.V. Anantha Murthy, K.S. Bartwal, S.N.N. Goswami, Krishan Lal Growth and Characterization of LiNbO₃ Single Crystals Proc. œII Soviet-India Symposium on Crystal Growth Moscow, Oct. 21 - 23 (1991). Gupta S.M. and Kulkarni A.R. Dielectric Studies on New Lead Based Glass-Ceramic 55th Annual Conference of Indian Ceramic Society, Calcutta, India, Dec.1991. D K Kohli, Y V S T Sai, S Ali, T P S Nathan Development of thermopile detector for CW CO₂ lasers National Symposium on Instrumentation (NSI-16) , Cochin University of Scienct & Tecnology, Cochin, Nov., 24-27, 1991 Y V S T Sai, T P S Nathan, C P Navathe, R Arya, P Shryner, G Mundra, D K Kohli, P Khare, A S Rao, D D Bhawalkar Development of a CW CO₂ laser system (Model C-40) for surgical applications National Symposium on Instrumentation (NSI-16) , Cochin University of Science and Technology, Cochin, Nov., 24-27, 1991 1990 Ram Janam, K.S. Bartwal, O.N. Srivastava Growth and Characterization of Yba₂Cu₃O_7-x Single Crystals Proc. œSymposium on Crystal Nucleation, Solution Growth and Surface Morphology Anna Uni., Madras, Jan. 8 “ 9 (1990). Gupta S.M. and Kulkarni A.R. Effect of Additives on Dielectric Properties of PMN 54^th Annual Conference of Indian Ceramic Society & Int. Symposium on Advanced Ceramic, B.A.R.C., India, Nov.1990. 1988 K.S. Bartwal, O.N. srivastava Electrically Driven Metal-Insulator Transition in TiS_xSe_2-x Single Crystals Proc. œXX National Seminar on Crystallography BHU, Varanasi, Dec. 14 - 17 (1988). 1987 K.S. Bartwal, O.N. Srivastava Growth and Structural Characterization of ZrS₂ Crystals Proc. œXIX National Seminar on Crystallography Gandhiji Uni., Kottayam, Kerala, Dec. 18-20 (1987). K.C. Tripathi, A.K. Karnal, Ved Prakash Pulsed Linear and Rotational Motors as New Alternative and Supplementary Transport System International Symposium on Automotive Technology-SIAT 87, Pune, Jan 28 - Jan 31 (1987). 1986 B. Das, K.S Bartwal, R.S. Tiwari, O.N. Srivastava Further Studies on Metal - Insulator (M-I) Transition in Titanium Disulphide Crystals Proc. œXVIII National Seminar on Crystallography Jammu Uni. Oct. 7-9 (1986). 1985 Das, K.S. Bartwal, R.S. Tiwari, O.N. Srivastava Disorder Effects and its Influences in Metal - Insulator Transition in Titanium Disulphide Crystals Proc. œV National Seminar on Physics of Semiconductor and Devices B.H.U., Varanasi, Dec. 5 - 7 (1985). K.S. Bartwal, B. Das, O.N. Srivastava Semi - Metal to Semiconductor Transition in TiS_1.7 crystals at High Temperature Proc. œXVI National Seminar on Crystallography Uni. of Delhi, Jan.2-4 (1985). K.C.Tripathi, Ved Prakash and A.K. Karnal Dynamically Synchronized Pulsed dc Linear and Rotational Motors for High Speed Railway Traction International Seminar and Exhibition on Railway Electrification, RE-85 1, Oct. (1985) TM 203-220. 1984 K.S. Bartwal, B. Das, O.N. Srivastava Electronic Transition and its Correlation with Structural and Electronic Behaviour of TiS_1.7 Crystals Proc. œXV National Seminar on Crystallography IISc. Bangalore, April 17-19 (1984). Book/ Book Chapters [ Top ] 2009 Growth of multiwalled carbon nanotubes on Cu/MgO and their features H. Ryu, B. K. Singh, I.V. Kityk, K.S. Bartwal In œAdvances in Condensed Matter Physics (Ed. A. H. Reshak) 2009, p.71-80 Sunil Verma and K. Muralidhar Convection, concentration, and surface features analysis during crystal growth from solution using optical diagnostics Chapter 5, In: œRecent Research Developments in Crystal Growth, 5 (2009) 141-314 (Transworld Research Network, India); ISBN: 978-81-7895-198-0 2008 Sunil Verma and K. Muralidhar Three-dimensional reconstruction of convective features during crystal growth from solution using computerized tomography In: œCT2008: Tomography Confluence, P. Munshi (Ed.), American Institute of Physics (AIP) CP 1050 (2008) 103-114; ISBN: 978-0-7354-0578-3 2006 Sunil Verma, K. Muralidhar and V.K. Wadhawan Determination of concentration field around a growing crystal using shadowgraphic tomography Chapter 14, In: œComputerized Tomography for Scientists and Engineers, P. Munshi (Ed.), (CRC Press, New York, 2006) 158-174; ISBN: 81-88342-70-X 2004 A.K. Karnal, R.Bhatt, Indranil Bhaumik, S.Ganesamoorthy, V.K.Wadhawan and H.L.Bhat Non-linear optical borates: Their recent development, with emphasis on CLBO and b-BBO growth Advanced Materials for Optoelectronics, ed. R.Jayavel and K.Kitamura, (Vijay Nicole, Publication, India 2004), pp.167-176. S. Kumaragurubaran, S. Takekawa, M. Nakakura, K. Terabe, S. Ganesamoorthy and K.Kitamura Correlation between domain switching characteristics and defect structure in pure and MgO doped near-stoichometric LiNbO₃ crystals Japan Society of Applied Physics, Vol.51, Catalog Number AP 041113-03, Pg 1299. S. Ganesamoorthy, M. Nakamura, S. Takekawa, S. Kumaragurubaran, K. Terabe and K. Kitamura Domain switching characteristics of near stoichiometric LiNbO₃ and LiTaO₃ single crystals Proceedings of International Workshop on Crystal Growth and Characterization of Technologically Important Materials, Crystal Growth Centre, Chennai, Feb.24-28, (2004), pp.166-170. 2003 A.K. Nath & K.S. Bartwal (Editors) Proceedings of DAE-BRNS Golden Jubilee National Laser Symposium “2003, Allied Publishers, New Delhi (2003) Sunil Verma, S.K. Sharma, K. Muralidhar and V.K. Wadhawan Optical techniques for online and in-situ imaging of crystal growth process In: œCrystal Growth of Technologically Important Electronic Materials, K. Byrappa, H. Klapper, T. Ohachi & R. Fornari (Eds.), (Allied Publishers, Bangalore, 2003) 616-619; ISBN: 81-7764-375-4 S.K. Sharma, Sunil Verma and V.K. Wadhawan Optical technique to study growth kinetics of birefringent crystals In: œCrystal Growth of Technologically Important Electronic Materials, K. Byrappa, H. Klapper, T. Ohachi & R. Fornari (Eds.), (Allied Publishers, Bangalore, 2003) 620-623; ISBN: 81-7764-375-4 S.Ganesamoorthy, Indranil Bhaumik, R.Bhatt, P.Pandit, A.K.Karnal and V.K.Wadhawan Growth of nonlinear optical single crystals of KTP and BBO by the flux technique International School on Crystal Growth of Technologically Important Electronic Materials, University of Mysore, January 20-27, 2003. S. Ganesamoorthy, M. Nakamura, S. Takekawa, S. Kumaragurubaran, K. Terabe and K. Kitamura Ferroelectric hysteresis loop studies on near stoichiometric LiNbO₃ and LiTaO₃ crystals Advanced Materials for Optoelectronics, ed.R.Jayavel and K.Kitamura, (Vijay Nicole, Publication, India 2004) pp.83-90. Articles in Professional Bulletin / Internal Report [ Top ] 2008 Sunil Verma, Development and application of optical diagnostics for imaging crystal growth from solution KIRAN (Bulletin of the ILA), 19 (1) April 2008, 17-23. 2004 Sushil Kumar Pathak, Sanjib Karmakar, Siddhram Markam, Surya M. Gupta and Vinod K. Wadhawan Awarakt Laser Pardardhi Zinc Sulphide “ Nirman Takneek Bharatiya Vaigyanik evam Audyogik Anusandhan Patrika (CSIR-Hindi Journal) 12, 39-42, 2004 2003 Arun Kumar, Rashmi Singh G.P Mohod and R.K Kharderkar. Alkoxide Chemistry Facility and Aspects of Chemical Facility CAT Internal Report CAT/2003/06 2002 S. K. Sharma, Prakash: Gunadharma aur Mahattva, Pragati (the Hindi periodical of CAT), 15, 2002, pp.15-17. 2001 K.K Mishra, R. K Khardekar , Rashmi Singh, H.C. Pant Fabrication of polysterene hollow microspheres as laser fusion targets by optimized density matched emulsion technique and characterization. CAT Internal Report CAT/2001/03 Sushil Kumar Sharma Ferroic Padarth: Ek Parichay Pragati (the Hindi periodical of CAT), 14, 2001, pp.28-30. 1997 Sushil Kumar Sharma, Sushil Kumar Pathak aur K. S. Bartwal Kristalon ki Sanrachana, Samvardhana tatha Takniki Vikash mei Mahattva Pragati (the Hindi periodical of CAT), 10, 1997, pp.20-25. Patents [ Top ] Hojin Ryu, K. S. Bartwal Calcium Aluminate Based Blue Phosphor And Method for The Preparation thereof. Korean Patent No. 2007-137207; Submission Date: Dec 26, 2007.


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