| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1495243 | Optical Materials | 2012 | 5 Pages |
Multicomponent telluride-tungstate glasses containing Nd3+ and Er3+ ions were studied experimentally at 77 and 293 K using spectroscopic methods. The Judd–Ofelt intensity parameters were derived from the absorption spectra and used to calculate the radiative lifetimes and branching ratios. The quantum efficiency η = 0.95 of the 4F3/2 level of Nd3+ ion is higher than the typical value of other tellurite-based glasses. For low concentration of Er3+ ions, the luminescence decay of the 4S3/2 and 4I11/2 levels is governed by radiative transitions and multiphonon relaxation involving the Te-O highest energy vibrations.
► The spectroscopic studies of tellurite glass containing Nd3+ and Er3+ were presented. ► The radiative lifetimes and branching ratios were examined. ► The quantum efficiency of Nd3+ ion is higher than value of other tellurite glasses.
