Balaji, S and Biswas, Kaushik and Sontakke, Atul D and Gupta, G and Ghosh, D and Annapurna, K (2014) Al2O3 influence on structural, elastic, thermal properties of Yb3+ doped Ba-La-tellurite glass: Evidence of reduction in self-radiation trapping at 1 mu m emission. Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 133. pp. 318-325. ISSN 1386-1425

Balaji, Sathravada and Biswas, Kaushik and Sontakke, Atul D and Gupta, Gaurav and Annapurna, K (2014) Enhanced 1.8 mu m emission in Yb3+/Tm3+ co-doped tellurite glass: Effects of Yb3+ <-> Tm3+ energy transfer and back transfer. Journal of Quantitative Spectroscopy & Radiative Transfer, 147. pp. 112-120. ISSN 0022-4073

Ghosh, Debarati and Karmakar, P and Biswas, K and Balaji, S and Sontakke, Atul D and Annapurna, K (2014) Variance of energy transfer dynamics in Ce3+ sensitized Eu3+ and Tb3+ doped alkali free Ba-Al metaphosphate glass: role of the host matrix. Physics And Chemistry of Glasses-European Journal of Glass Science and Technology Part B , 55 (5). pp. 196-206. ISSN 1753-3562

Biswas, Kaushik and Balaji, Sathravada and Ghosh, Debarati and Sontakke, Atul D and Annapurna, K (2014) Near-infrared frequency down-conversion and cross-relaxation in Eu2+/Eu3+-Yb3+ doped transparent oxyfluoride glass and glass-ceramics. Journal of Alloys and Compounds, 608. pp. 266-271. ISSN 0925-8388

Gupta, Gaurav and Sontakke, Atul D and Karmakar, P and Biswas, Kaushik and Balaji, S and Saha, R and Sen, Ranjan and Annapurna, K (2014) Influence of bismuth on structural, elastic and spectroscopic properties of Nd3+ doped Zinc-Boro-Bismuthate glasses. Journal of Luminescence, 149. pp. 163-169. ISSN 0022-2313

Biswas, Kaushik and Sontakke, Atul D and Balaji, S and Molla, Atiar Rahaman and Annapurna, K (2013) Crystallization kinetics and luminescence properties of a new low phonon Bi2O3-ZnO-GeO2 glass. Physics And Chemistry of Glasses-European Journal of Glass Science and Technology Part B , 54 (5). pp. 206-215. ISSN 1753-3562

Biswas, Kaushik and Sontakke, Atul D and Sen, Ranjan and Annapurna, K (2013) Enhanced 2 mu m broad-band emission and NIR to visible frequency up-conversion from Ho3+/Yb3+ co-doped Bi2O3-GeO2-ZnO glasses. Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 112. pp. 301-308. ISSN 1386-1425

Sontakke, Atul D and Annapurna, K (2013) Phonon assisted effective non-resonant energy transfer based 1 mu m luminescence from Nd3+-Yb3+ codoped zinc-boro-bismuthate glasses. Journal of Luminescence, 138. pp. 229-234. ISSN 0022-2313

Sontakke, Atul D and Annapurna, K (2013) Energy transfer based efficient infrared emission at 1.57 mu m from Yb3+-Er3+ codoped Zinc-borobismuthate glasses. Optical Materials , 35 (3). pp. 472-478. ISSN 0925-3467

Sontakke, Atul D and Annapurna, K (2013) Spectroscopic properties and concentration effects on luminescence behavior of Nd3+ doped zinc-boro-bismuthate glasses. Materials Chemistry and Physics, 137 (3). pp. 916-921. ISSN 0254-0584

Sontakke, Atul D and Annapurna, K (2012) Study on Tb3+ containing high silica and low silica calcium aluminate glasses: Impact of optical basicity. Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 94. pp. 180-185. ISSN 1386-1425

Sontakke, Atul D and Annapurna, K (2012) Energy transfer kinetics in oxy-fluoride glass and glass-ceramics doped with rare-earth ions. Journal of Applied Physics, 112 (1). Article No-013510. ISSN 0021-8979

Balaji, Sathravada and Sontakke, Atul D and Annapurna, K (2012) Yb3+ ion concentration effects on similar to 1 mu m emission in tellurite glass. Journal of the Optical Society of America B-Optical Physics , 29 (7). pp. 1569-1579. ISSN 0740-3224

Biswas, Kaushik and Sontakke, Atul D and Annapurna, K (2012) Synthesis and structural probing of Eu3+ doped BaYF5 nano-crystals in transparent oxyfluoride glass-ceramics. International Journal of Applied Glass Science, 3 (2). pp. 154-162. ISSN 2041-1294

Biswas, Kaushik and Sontakke, Atul D and Sen, Ranjan and Annapurna, K (2012) Luminescence Properties of Dual Valence Eu Doped Nano-crystalline BaF2 Embedded Glass-ceramics and Observation of Eu2+ -> Eu3+ Energy Transfer. Journal of Fluorescence, 22 (2). pp. 745-752. ISSN 1053-0509

Biswas, Kaushik and Sontakke, Atul D and Sen, Ranjan and Annapurna, K (2012) Luminescence properties of dual valence Eu doped nano-crystalline BaF2 embedded glass-ceramics and observation of Eu2+ -> Eu3+ energy transfer. Journal of Fluorescence, 22 (2). pp. 745-752. ISSN 1053-0509

Sontakke, Atul D and Annapurna, K (2012) Network coordination in low germanium alkaline-earth gallate systems: influence on glass formation. RSC Advances, 2 (33). pp. 13024-13031. ISSN 2046-2069

Balaji, Sathravada and Sontakke, Atul D and Sen, Ranjan and Annapurna, K (2011) Efficient ~2.0 μm emission from Ho3+ doped tellurite glass sensitized by Yb3+ ions: Judd-Ofelt analysis and energy transfer mechanism. Optical Materials Express, 1 (2). pp. 138-150. ISSN 2159-3930

Sontakke, Atul D and Biswas, Kaushik and Tarafder, Anal and Sen, R and Annapurna, K (2011) Broadband Er3+ emission in highly nonlinear Bismuth modified Zinc-Borate glasses. Optical Materials Express, 1 (3). pp. 344-356. ISSN 2159-3930

Sontakke, Atul D and Biswas, Kaushik and Sen, Ranjan and Annapurna, K (2010) Efficient non-resonant energy transfer in Nd(3+)-Yb(3+) codoped Ba-Al-metaphosphate glasses. Journal of the Optical Society of America B-Opticcal Physics, 27 (12). pp. 2750-2758. ISSN 0740-3224

Sontakke, Atul D and Biswas, Kaushik and Sen, Ranjan and Annapurna, K (2010) Efficient non-resonant energy transfer in Nd3+ - Yb3+ codoped Ba-Al-metaphosphate glasses. Journal of the Optical Society of America B-Opticcal Physics, 27 (12). pp. 2750-2758. ISSN 0740-3224 (Submitted)

Biswas, Kaushik and Sontakke, Atul D and Majumder, M and Annapurna, K (2010) Nonisothermal crystallization kinetics and microstructure evolution of calcium lanthanum metaborate glass. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 101 (1). pp. 143-151. ISSN 1388-6150

Biswas, Kaushik and Sontakke, Atul D and Ghosh, Jiten and Annapurna, K (2010) Enhanced Blue Emission from Transparent Oxyfluoride Glass Ceramics Containing Pr3+:BaF2 Nano-crystals. Journal of the American Ceramic Society, 93 (4). pp. 1010-1017. ISSN 0002-7820 (Submitted)

Biswas, Kaushik and Sontakke, Atul D and Ghosh, Jiten and Annapurna, K (2010) Enhanced Blue Emission from Transparent Oxyfluoride Glass-Ceramics Containing Pr3+:BaF(2) Nanocrystals. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 93 (4). pp. 1010-1017. ISSN 0002-7820

Biswas, Kaushik and Sontakke, Atul D and Annapurna, K (2010) Effect of TiO(2) on thermal, structural and third-order nonlinear optical properties of Ca-La-B-O glass system. Journal of Alloys and Compounds, 489 (2). pp. 493-498. ISSN 0925-8388

Sontakke, Atul D and Biswas, Kaushik and Mandal, Ashis Kumar and Annapurna, K (2010) Time Resolved Fluorescence and Energy Transfer Analysis of Nd(3+)-Yb(3+)-Er(3+) Triply-Doped Ba-Al-Metaphosphate Glasses for an Eye Safe Emission (1.54 mu m). Journal of Fluorescence, 20 (1). pp. 425-434. ISSN 1053-0509

Sontakke, Atul D and Biswas, Kaushik and Mandal, Ashis Kumar and Annapurna, K (2010) Time resolved spectra and energy transfer analysis of Nd3+-Yb3+-Er3+ triply-doped Ba-Al-metaphosphate glasses for an eye safe emission (1.54 μm). Journal of Fluorescence, 20 (1). pp. 425-434. ISSN 1053-0509

Sontakke, Atul D and Biswas, Kaushik and Annapurna, K (2009) Concentration-dependent luminescence of Tb(3+) ions in high calcium aluminosilicate glasses. Journal of Luminescence, 129 (11). pp. 1347-1355. ISSN 0022-2313

Sontakke, Atul D and Tarafder, Anal and Biswas, Kaushik and Annapurna, K (2009) Sensitized red luminescence from Bi(3+) co-doped Eu(3+): ZnO-B2O(3) glasses. Physica B-Condensed Matter, 404 (20). pp. 3525-3529. ISSN 0921-4526

Sontakke, Atul D and Biswas, Kaushik and Annapurna, K (2009) Concentration Dependent Luminescence of Tb3+ ions in high Calcium-Alumino-Silicate Glasses. Journal of Luminescence, 129 (11). pp. 1347-1355. ISSN 0022-2313