TITLE:
The Fluorescence of Pr3+ in Zinc Lithium Bismuth Borate Glasses with Large Stimulated Emission Cross Section
AUTHORS:
Beena Bhatia, S. L. Meena
KEYWORDS:
Zinc Lithium Bismuth Borate Glasses, Energy Interaction Parameters, Optical Properties, Judd-Ofelt Analysis
JOURNAL NAME:
New Journal of Glass and Ceramics,
Vol.6 No.2,
April
5,
2016
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.