| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1497735 | Optical Materials | 2006 | 4 Pages |
Abstract
Infrared spectra and lifetimes of 4I13/2 state of Er3+ in tungsten-tellurite glasses doped with different concentrations of Er2O3 were measured and studied. Judd-Ofelt analysis on absorption spectra was performed. The lifetime of the 4I13/2 state decreases with the increase of the Er3+ concentration due to energy transfer processes. The energy transfer coefficient of 1.6Â ÃÂ 10â18Â cm3Â sâ1 was obtained. It is observed that the nonradiative relaxation rate of 4I11/2-4I13/2 transition of Er3+ in tungsten-tellurite glass is unchanged with the increase of Er3+ concentration, and about twice as that in TeO2-ZnO-Na2O glass.
Related Topics
Physical Sciences and Engineering
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Authors
Yongshi Luo, Jiahua Zhang, Jiangting Sun, Shaozhe Lu, Xiaojun Wang,