Judd–Ofelt analysis and near infrared emission properties of the Er3+ ions in tellurite glasses containing WO3 and CdO
✍ Scribed by G. Bilir; G. Ozen; D. Tatar; M.L. Öveçoğlu
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 599 KB
- Volume
- 284
- Category
- Article
- ISSN
- 0030-4018
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✦ Synopsis
The influence of erbium (Er 3+ ) ion concentration on the infrared emission at 1.5 μm in TeO 2 -WO 3 and TeO 2 -CdO-WO 3 glasses was studied. The samples were prepared by conventional melt quenching method. The optical properties were studied by measuring the absorption and luminescence spectra at room temperature. The Judd-Ofelt parameters (Ω t ), transition probabilities, branching ratios of various transitions and their radiative lifetimes were calculated from the optical absorption spectra. Absorption and emission cross-section spectra and the Stark Levels splitting for the 4 I 13/2 to 4 I 15/2 transition of Er 3+ centered at 1.5 μm were determined.