Abstract
Glass sample of Zinc Lithium Bismuth Borate (25-x) Bi2O3:20Li2O:20ZnO:35B2O3:xPr6O11, (where x = 1, 1.5 and 2 mol%) has been prepared by melt-quenching technique. The amorphous nature of the prepared glass samples was confirmed by X-ray diffraction. The absorption spectra of three Pr3+ doped zinc lithium bismuth borate glasses have been recorded at room temperature. The observed optical spectra are discussed in terms of energy states and the intensity of the transitions. The various interaction parameters like Slater-Condon, Lande, bonding and Racah parameters have been computed. Judd-Ofelt intensity parameters and laser parameters have also been calculated. The stimulated emission cross section (σp) for the transition (3P0 → 3F2) is found to be in the range 3.12 - 10.43 * 10-20 cm2. The σp values are comparatively large suggesting the possible utilization of these materials in laser applications.
Highlights
Rare earth doped solid state materials have become an important class of solids, attracting much attention among researches as is evident from the abundance of studies that can be found in the literature
Most of the glasses developed for laser action give suitable laser transition in NIR region How to cite this paper: Bhatia, B. and Meena, S.L. (2016) The Fluorescence of Pr3+ in Zinc Lithium Bismuth Borate Glasses with Large Stimulated Emission Cross Section
The addition of higher mol% of Bi2O3 in borate glasses enhances the value of stimulated emission cross section
Summary
Rare earth doped solid state materials have become an important class of solids, attracting much attention among researches as is evident from the abundance of studies that can be found in the literature. (2016) The Fluorescence of Pr3+ in Zinc Lithium Bismuth Borate Glasses with Large Stimulated Emission Cross Section. Some spectral studies have been reported for Pr3+ doped borate and phosphate glasses by Weber [9] [10], Riesfeld [11] [12], Lakshman [13] and Tandon et al [14]-[16]. Such studies have been reported on Pr3+ doped bismuth borate glasses by our group [17]. A comparative study of predicted laser action in borate, phosphate and bismuth borate glasses doped with Pr3+ ions have been discussed. The addition of higher mol% of Bi2O3 in borate glasses enhances the value of stimulated emission cross section
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