Judd-Ofelt analysis and luminescence studies of Er3+ doped halogeno-antimonate glasses

This research paper emphasized on application of Judd-Ofelt's (JO) theory for low doped erbium (0.2 mol%) halogeno-antimonate based glasses with molar composition (90 –x) Sb2O3 - x ZnBr2 10 NaCl (where = 10, 20, 30 and 40 mol%). 80 – 9.8 0.2 Er2O3 glass sample has phonon energy high refractive index is a potential candidate luminescence applications. Differential scanning calorimetry (DSC) measurements show good the thermal stability prepared samples other hand density, expansion coefficient elastic moduli were reported. parameter intensities Ω2 3.27 × 10−20 cm2, Ω4 1.24 cm2 Ω6 1.88 found these compared literature. Radiative parameters such as spontaneous emission rate, branching ratio lifetime calculated. We focused radiative transitions 2H11/2 → 4I15/2 (β 0.94) 4F9/2 0.901). The overlap between absorption bands partial stokes type shifts presented. gain curves determined after calculation stimulated cross sections. infrared transmission curve matrix was marked extrinsic SiO hydroxyl OH possessed vibration played quenching effect photoluminescence.