Linear, non-linear refractive index and Judd-Ofelt parameters of Tm2O3-doped P2O5-PbO-WO3 glasses

Abstract

Lead phosphate glasses within system [40PbO–50P2O5-(10-x) WO3- xTm2O3] doped with different concentration of xTm2O3 ions are equipped and used the rapid cooling mechanism. Produced sets are noticed to soak up highly in the UV domain and ascribed to the concerted aided impurities of iron and participation of lead Pb2+ ions. Subsisting of WO3 exposed clear absorption patterns which are ascribed to appear of W5+ pentavalent ions. Physical parameters such as density (ρ), molar volumes (Vm), refractive index (n), an optical energy gap (Eg) and Urbach energy (ΔE) values of prepared glasses were evaluated. In addition to, the Judd–Ofelt coefficients of the transformation form of oscillator probabilities, fexp., fth, branching ratio, β and radiative lifespans, τ, of many excited sites of Tm3+ have also been computed. Gain cross-section laser transformation stage from 3H6 → 3F3, 3H6 → 3H4, 3H6 → 3H5 and 3H6 →3F4 and induced emission cross-section determined at specific concentrate of Tm2O3 ions across all current glasses. Thus, their spectroscopic characteristics suggest that such Tm3+ doped glasses are an excellent choice for optical purposes.