Hemantha Kumar, G N and Parthasarathy, G and Chakradhar, R P S and Rao, J Lakshmana and Ratnakaram, Y C (2010) Temperature dependence on the electron paramagnetic resonance spectra of natural jasper from Taroko Gorge (Taiwan). Physics and Chemistry of Minerals, 37 (4). pp. 201-208. ISSN 0342-1791

Hemanthkumar, G N and Parthasarathy, G and Chakradhar, R P S and Omkaram, I and Rao, J Lakshmana and Ratnakaram, Y C (2009) Electron paramagnetic resonance studies on clinochlore from Longitudinal Valley area, northeastern Taiwan. Physics and Chemistry of Minerals, 36 (8). pp. 447-453. ISSN 0342-1791

Ratnakaram, Y C and Srihari, N V and Kumar, A Vijaya and Thirupathi Naidu, D and Chakradhar, R P S (2009) Optical absorption and photoluminescence properties of Nd3+ doped mixed alkali phosphate glasses-spectroscopic investigations. Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 72 (1). pp. 171-177. ISSN 1386-1425

Singh, Vijay and Naidu, D T and Chakradhar, R P S and Ratnakaram, Y C and Zhu, Jun-Jie and Soni, Manish (2008) Synthesis, characterization and optical properties of LaAlO(3):Ho(3+) phosphor. Physica B-Condensed Matter, 403 (19-20). pp. 3781-3785. ISSN 0921-4526

Ratnakaram, Y C and Srihari, N V and Naidu, D T and Vijayakumar, A and Chakradhar, R P S (2008) Spectroscopic investigations on Ho3+ doped mixed alkali phosphate glasses. Optical Materials , 30 (10). pp. 1635-1643. ISSN 0925-3467