文献类型：期刊文献

英文题名：Broadband near-infrared emission in Er³⁺-Tm³⁺ codoped chalcohalide glasses

作者：Xu, Yinsheng[1];Chen, Danping[2];Wang, Wei[1];Zhang, Qiang[2,3];Zeng, Huidan[1];Shen, Ce[1];Chen, Guorong[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China;[2]Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China;[3]Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

年份：2008

卷号：33

期号：20

起止页码：2293

外文期刊名：OPTICS LETTERS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000260970800004)】；

基金：This research is financially supported by the National Natural Science Foundation of China (NSFC) (60578042, 50702021), the Research Funds for Young Teachers for the Doctoral Program by Ministry of Education of China (20070251013) and the Shanghai Leading Academic Discipline Project, project B502.

语种：英文

摘要：The near-IR emission spectra of Er3+-Tm3+ codoped 70GeS(2)-20In(2)S(3)-10CsI chalcohalide glasses were studied with an 808 nm laser as an excitation source. A broad emission extending from 1.35 to 1.7 mu m with a FWHM of similar to 160 nm was recorded in a 0.1 mol.% Er2S3, 0.5 mol.% Tm2S3 codoped chalcohalide glass. The fluorescence decay curves of glasses were measured by monitoring the emissions of Tm3+ at 1460 nm and Er3+ at 1540 nm, and the lifetimes were obtained from the first-order exponential fit. The luminescence mechanism and the possible energy-transfer processes are discussed with respect to the energy-level diagram of Er3+ and Tm3+ ions. (C) 2008 Optical Society of America