Luminescence properties of Sm3+-doped fluorosilicate glasses

摘要: Sm2O3-doped fluorosilicate glasses (SiO2þNb2O5þK2OþZnF2) were prepared by the melt quenching technique and are characterized through various spectroscopic techniques such as Raman, optical absorption, excitation, emission decay to derive properties. Raman analysis has been carried out in order know vibrational groups present glass matrix. The band gap Urbach energies have evaluated from absorption edges of spectra 1.0 mol% Sm2O3 doped glass. Judd–Ofelt (JO) applied evaluate intensity parameters, Ωλ (λ¼2,4 6), for These JO parameters used radiative properties transition probabilities, branching ratios, lifetime stimulated cross-sections luminescent levels Sm 3 þ ion. curve performed all energy transfer processes between ions. results indicate that could be useful