JUDD-OFELT ANALYSIS OF DYSPROSIUM IN SOL GEL SILICA

摘要

Preparation and Judd-Ofelt (JO) analysis of Dysprosium doped sol gel silica glass is reported. The calculated values of the JO parameters are utilized to evaluate , various radiative parameters such as electric dipole line strengths (S_(ed)), radiative transition probabilities (A_(RAD)). radiative lifetimes (τ_(RAD)), fluorescence branching ratios (β_R) and the integrated absorption cross sections (σ_a) for stimulated emission from various excited states of the rare earth ion. The analysis reveals the potential of ~4F_(9/2)→~6H_(13/2) and ~4F_(9/2) → ~6H_(15/2) transitions of Dy~(3+) ion for optical applications.