Sm³⁺ ions doped zinc barium tellurite oxyfluoride glasses for laser materials

Abstract

The Sm³⁺ ions were doped tellurite glasses with composition (55-x) TeO₂-10ZnF₂-35BaO-xSm₂O₃ (where x = 0.00, 0.05, 0.10, 0.50, 1.00 and 1.50 in mol%) to investigate the physical, the optical, the luminescence and structural properties. The functional groups can be identified using FT-IR spectra of Sm³⁺ in the glasses. The most intense peak from emission spectra is at 600 nm (⁴G_5/2->⁶H_7/2) corresponding to reddish-orange color. The oscillator strengths were resolved from the absorption spectra and then used to calculate the Judd–Ofelt (J–O) intensity parameters. The radiative properties were calculated by J–O intensity parameters for various transitions in tellurite glass matrices. According to the results of stimulated emission cross section, lifetime and the branching ratio of the emission transition ⁴G_5/2->⁶H_7/2, it is promised that 0.50 mol% of Sm₂O₃ doped tellurite glasses is the potential laser material.