Yb掺杂原子数分数为0.5%的Yb∶Y_3Al_5O_(12)晶体的光谱分析  

Spectroscopic Properties of Yb∶Y_3Al_5O_(12) with Yb-DopingConcentration 0.5 at.-%

作　　者：王晓丹[1] 赵志伟[1] 徐晓东[1] 宋平新[1] 姜本学[1] 徐军[1] 邓佩珍[1] Gilbert Bourdet J.-C.Chanteloup 

机构地区：[1]中国科学院上海光学精密机械研究所 [2]Ecole Polytechnique,Laboratoire pour l'Utilisation des Lasers Intenses,Palaiseau 91128,France [3]Ecole Polytechnique,Laboratoire pour l’Utilisation des Lasers Intenses,Palaiseau 91128,France

出　　处：《中国激光》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

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.

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 

分 类 号：TN244[电子电信—物理电子学]