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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 (E opt)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 (E 1, E2,E 3,ξ4f and α), spectral intensities (f expt), 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.

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