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Venkateswarlu, C and Kumar, Hemantha N and Seshadri, MR and Ratnakaram, YC and Koteswara, Rao KSR and Rao, JL (2010) Studies on optical absorption and photoluminescenceproperties of Pr3+ and Nd3+ doped mixed alkali chloroborate glasses. In: Journal of Alloys and Compounds, 502 (1). pp. 97-106.
Seshadri, M and Rao, K Venkata and Rao, J Lakshmana and Rao, KSR Koteswara and Ratnakaram, YC (2010) Spectroscopic investigations and luminescence spectra of Nd3+ and Dy3+ doped different phosphate glasses. In: Journal of Luminescence, 130 (4). pp. 536-543.
Ratnakaram, YC and Naidu, Thirupathi D and Chakradhar, RPS (2006) Spectral studies of $Sm^{3+}$ and $Dy^{3+}$ doped lithium cesium mixed alkali borate glasses. In: Journal of Non-Crystalline Solids, 352 (36-37). pp. 3914-3922.
Ratnakaram, YC and kumar, Vijaya A and Chakradhar, RPS (2006) Optical absorption and emission properties of $Pr^{3+}$ and $Er^{3+}$ in lithium cesium mixed alkali borate glasses. In: Journal of Luminescence, 118 (2). pp. 227-237.
Vijayakumar, A and Chakradhar, RPS and Ratnakaram, YC (2006) Optical absorption and emission properties of $Pr^{3+}$ and $Er^{3+}$ in mixed alkali borate glasses. In: International Symposium on Non Oxide and new Optical Glasses (ISNOG), 10 - 14 April, 2006, Indian Institute of Science, Bangalore.
Naidu, Thirupathi D and Kumar, AV and Chakradhar, RPS and Ratnakaram, YC (2006) Spectral studies of $Sm^{3+}$ and $Dy^{3+}$ doped lithium cesium mixed alkali borate glasses. In: International Symposium on Non Oxide and new Optical Glasses (ISNOG), 10 - 14 April, 2006, Indian Institue of Science, Bangalore.
Ratnakaram, YC and Lakshmi, J and Chakradhar, RPS (2005) Optical absorption and fluorescence properties of $Er^{3+}$ in sodium borate glass. In: Bulletin of Materials Science, 28 (5). pp. 461-465.
Ratnakaram, YC and Kumar, Vijaya A and Naidu, Tirupathi D and Chakradhar, RPS (2005) Absorption and emission properties of $Nd^{3+}$ in lithium cesium mixed alkali borate glasses. In: Solid State Communications, 136 (1). pp. 45-50.
Ratnakaram, YC and Kumar, Vijaya A and Naidu, Thirupathi D and Chakradhar, Sreekanth RP and Ramesh, KP (2004) Optical absorption and luminescence properties of Nd3+ in mixed alkali borate glasses-Spectroscopic investigations. In: Journal of Luminescence, 110 (1-2). pp. 65-77.
Ratnakaram, YC and Chakradhar, Sreekanth RP and Ramesh, KP and Rao, JL and Ramakrishna, J (2003) The effect of host glass on optical absorption and fluorescence of Nd3+ in xNa(2)O-(30-x)K2O-70B(2)O(3) glasses. In: Journal of Physics: Condensed Matter, 15 (40). pp. 6715-6730.
Ratnakaram, YC and Altaf, Abdul Md and Chakradhar, Sreekanth RP and Rao, JL and Ramakrishna, J (2003) Influence of Nd3+ concentration on its optical absorption and luminescence properties in potassium borate glass. In: Physica Status Solidi (b), 236 (1). pp. 200-208.
Ratnakaram, YC and Chakradhar, Sreekanth RP and Ramesh, KP and Rao, JL and Ramakrishna, J (2003) Mixed alkali effect in borate glasses-optical absorption studies in ${Ho}^{3+}$ doped $x(Na_2O) . (30 - x )(K_2O) . 70(B_2O_3)$ glasses. In: Journal of Materials Science, 38 (4). pp. 833-841.
Ratnakaram, YC and Naidu, Thirupathi D and Kumar, Vijaya A and Chakradhar, RPS (2003) Characterization of Tm3+ Doped Mixed Alkali Borate Glasses- Spectroscopic Investigation. In: DAE-BRNS National Laser Symposium (NLS-2003), December 22-24, 2003, pp. 518-519.
Ratnakaram, YC and Kumar, Vijaya A and Thirupatinaidu, D and Chakradhar, RPS (2003) Electronic Spectra of $Pr^3^+$ Doped Mixed Alkali Borate Glasses. In: DAE-BRNS National Laser Symposium (NLS-2003), December 22-24, 2003., Indian Institute of Technology, Kharagpur, pp. 246-247.
Ratnakaram, YC and Kumar, Vijaya A and Tirupathinaidu, D and Chakradhar, RPS and Ramakrishna, J (2003) Electronic spectra of $Pr^3^+$ doped mixed alkali borate glasses. In: Physics and Chemistry of Glasses, 44 (5). pp. 376-381.
Ratnakaram, YC and Reddy, Viswanadha A and Chakradhar, Sreekanth RP (2002) Electronic absorption spectra and energy gap studies of Er3+ ions in different chlorophosphate glasses. In: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 58 (8). pp. 1809-1822.
