The study of Sm3+-doped low-phonon-energy chalcohalide glasses |
| |
| Authors: | Gao Tang Huihua Xiong Wei Chen Lan Luo |
| |
| Affiliation: | 1. Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China;2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China |
| |
| Abstract: | The Sm3+-doped low-phonon-energy (LPE) Ge–Ga–Se–CsI glasses were studied. Upon excitation at 980 nm diode laser, intense 1.25 and 1.49 μm near-infrared fluorescence bands with broad full width at half maximum (FWHM) of 49 and 53 nm were observed, respectively. About 180–300 μs fluorescence lifetimes were obtained for the 1.49 μm emission. The thermal properties and structure of glasses were investigated by differential thermal analysis (DTA) and Raman spectra, respectively. Spectroscopic characteristics of the optical transitions have been calculated by using the Judd–Ofelt theory and evaluated for excited levels. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
