Correlation of radiative properties of rare earth ions (Pr3+ and Nd3+) in chlorophosphate glasses - 0.1 and 0.5 mol% concentrations

Abstract

Optical properties of chlorophosphate glasses of the type 50P2O5-30Na2HPO4-20RCl (R = potassium and lead) activated by 0.1 and 0.5 mol% of Pr3+ and Nd3+ have been investigated. Optical band gaps (Eopt) have been reported for 0.1 and 0.5 mol% concentrations of Pr3+ and Nd3+ doped potassium and lead chlorophosphate glasses. Energy levels and optical transitions of Pr3+ and Nd3+ are assigned. Spectroscopic parameters (E1, E2, E3, ξ4f and α), spectral intensities (fexpt), Judd-Ofelt intensity parameters (Ω2, Ω4 and Ω6) and radiative lifetimes (τR) are correlated for 0.1 and 0.5 mol% concentrations of these two ions in potassium and lead chlorophosphate glasses.