Abstract

Er3+ doped lead boro-tellurite glasses with the chemical composition (30–x)B2O3+30TeO2+23MgO+17PbF2+xEr2O3 (where x=0.05, 0.25, 0.5, and 1 in wt%) were synthesized by melt quenching technique. The structural and optical behaviors have been investigated through FTIR, absorption and emission spectral analysis. The UV–vis– NIR absorption spectra were used to calculate the bonding parameters (β¯, δ), Judd-Ofelt intensity parameters (Ωλ, λ = 2, 4 and 6), Optical band gap and Urbach’s energy of the prepared glasses. The radiative properties such as transition probability (AR), stimulated emission cross-section (σPE), branching ratios (βR) were calculated from the luminescence spectra. The optical properties of the prepared glasses with varying Er3+ ion concentration have been studied and reported in the present work.

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