Broadband Infrared Luminescence of Ni^2＋ in Petalite-Type Transparent Glass Ceramics  

作　　者：冯高锋 周时凤 张松敏 杨护成 邱建荣 

机构地区：[1]State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027

出　　处：《Chinese Physics Letters》2007年第4期968-970,共3页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 50672087, and the National Basic Research Programme of China under Grant No 2006CBS06000b.

摘　　要：Transparent Ni^2＋-doped magnesium aluminosilicate glass ceramics are prepared. The formation of petalite-type crystallites in the glass ceramics is confirmed by x-ray diffraction. Broadband infrared luminescence centred at around 1235nm with full width at half maximum （FWHM） of about 300nm is observed from the Ni^2＋-doped glass ceramics. The observed infrared emission could be attributed to the ^3T2（F） → ^3A2（F） transition of octahedral Ni^2＋ ions in petalite-type crystallites. Theproduct of the fluorescence lifetime and the stimulated emission cross sections is 1.2 ×10-24 cm^2s.Transparent Ni^2＋-doped magnesium aluminosilicate glass ceramics are prepared. The formation of petalite-type crystallites in the glass ceramics is confirmed by x-ray diffraction. Broadband infrared luminescence centred at around 1235nm with full width at half maximum （FWHM） of about 300nm is observed from the Ni^2＋-doped glass ceramics. The observed infrared emission could be attributed to the ^3T2（F） → ^3A2（F） transition of octahedral Ni^2＋ ions in petalite-type crystallites. Theproduct of the fluorescence lifetime and the stimulated emission cross sections is 1.2 ×10-24 cm^2s.

关 键 词：OPTICAL-PROPERTIES SILICATE GLASS SPECTROSCOPY NANOCRYSTALS EMISSION PHASES NICKEL SPINEL 

分 类 号：O434.3[机械工程—光学工程]