Cr，Ca：YAG晶体中Cr^（4＋）的吸收和退火特性  

Absorption and Oxygen-annealing Characterizationof Cr￣(4+) in Cr,Ca:Y3Al5O12 Crystals

作　　者：徐军[1] 邓佩珍[1] 王四亭[1] 钟鹤裕[1] 陈杏达[1] 干福熹[1] 

机构地区：[1]中国科学院上海光机所

出　　处：《中国激光》1996年第4期363-365,共3页Chinese Journal of Lasers

基　　金：国家自然科学基金

摘　　要：用Ｃｚｏｃｈｒａｌｓｋｉ法生长了Ｃｒ４＋：ＹＡＧ可调谐激光晶体，对样品进行氧化气氛高温退火实验，分析比较了退火前后Ｃｒ４＋吸收特性的变化，发现退火后样品中Ｃｒ４＋的吸收显著增强；Ｃｒ３＋的主要吸收峰值红移，并提出相应模型对此现象进行了解释。Single crystals of Cr,Ca:Y3Al5O12(YAG)were grown by the Czochralski(CZ)method. The aborption characterization of both as-grown and oxygen-annealedcryStals was carried out and compered with each other.Every absorption peak of Cr(4+)andCr(3+)increased in intensity by annealing. It's also found that the main band position ofCr(3+) was red shifted. These phenomena and formation mechanism were analyscd anddiscuss.

关 键 词：CR^4+:YAG 可调谐激光晶体 退火 吸收光谱 

分 类 号：O782[理学—晶体学]