Optical absorption and fluorescence spectral analysis of Ho3+ ions doped zinc bismuth borate glasses

Abstract

Zinc Bismuth Borate glasses doped with Holmium was prepared by normal melt quenching technique. Optical absorption and photoluminescence spectra of these glasses have been recorded at room temperature. The observed spectra have been analysed on the basis of Judd-Ofelt theory. From this theory various radiative properties such as radiative transition probability, branching ratio, radiative life time and stimulated emission cross-section for the prominent emission levels ⁵F₃→⁵I₈, ⁵F₄→⁵I₈, ⁵S₂→⁵I₈ and ⁵F₅→⁵I₈ have been evaluated.