摘要
采用提拉法生长了Yb掺杂原子数分数为0.5%的Yb∶Y3Al5O12(Yb∶YAG)晶体,对晶体的吸收光谱和荧光光谱进行了分析。与Yb掺杂原子数分数为5%的Yb∶YAG晶体进行了对比,得出采用940 nm激光二极管(LD)抽运晶体最为合适。原子数分数为0.5%的Yb∶YAG晶体相对于原子数分数为5%的Yb∶YAG晶体自吸收效应的影响要小。测量了原子数分数为0.5%的Yb∶YAG晶体的荧光寿命为0.95 ms,与理论值很接近。因此采用原子数分数为0.5%的Yb∶YAG晶体作为激光工作物质将有利于高效、小型集成化的固体激光器的发展。
Yb：Y3Al5O12（Yb：YAG） single crystal with Yb doping concentration 0.5 at.-% was grown by the Czochralski process. The absorption spectra and fluorescence spectra were studied and compared with 5 at.-% Yb; YAG single crystal. All results indicate that as a laser cyrstal, 0. 5 at.-% Yb： YAG single crystal is suitable for pumping with 940 nm laser diode （LD） and the self-absorption effect is smaller than that of 5 at,-% Yb： YAG single crystal, The fluorescent lifetime of 0.5 at. -% Yb： YAG is 0.95 ms that is close to theoretical value. So this crystal is more promising as laser operation material used for high efficiency, miniature type, compact solid-state lasers.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2006年第5期692-696,共5页
Chinese Journal of Lasers
基金
国家863计划(2002AA311030)资助项目
关键词
材料
光谱
YB:YAG晶体
吸收光谱
荧光光谱
自吸收
荧光寿命
materials
spectrum
Yb：YAG crystal
absorption spectra
fluorescence spectra
self absorption
fluorescent lifetime
