सामग्री विज्ञान और इंजीनियरिंग जर्नल

Photoluminescence Spectrum of PbO-NaF-B2O3 Glass Doped with Ln3+ (Sm3+/Ho3+) Ions

Abstract

N. Narasimha Rao*, B. J.R.S.N. Swamy, P. Raghava Rao, P. Naresh and A. Chitti Babu

Ln₂O₃ doped PbO-NaF-B₂O₃ glasses were prepared and characterized through spectroscopic technique such as photoluminescence at room temperature to derive luminescence properties of Ln3+ ions in these glasses. Radiative properties which include radiative transition possibilities, branching ratios, radiative lifetime and stimulated emission cross sections of the fluorescent degree of Ln3+ ions in titled glasses are determined. In the present work all our systematic analysis has been presented with an example of results obtained in PbO-NaF-B₂O₃-Ln₂O₃ glasses. These results are used to access the gain media and in turn useful not only to write waveguides but also to modify the fluorescence properties through laser irradiation.