Yb^(3+)掺杂对Yb:GdYAl_3(BO_3)_4晶体性质的影响  

Effect of Different Yb^(3+) Doping Concentration on Properties of Yb:GdYAl_3(BO_3)_4 Crystal

作　　者：李静[1] 徐国纲[1] 程艳[2] 韩树娟[1] 王继扬[1] 

机构地区：[1]山东大学晶体材料国家重点实验室,山东济南250100 [2]中国科学院上海光学精密仪器研究所,上海201800

出　　处：《压电与声光》2010年第5期867-869,881,共4页Piezoelectrics & Acoustooptics

基　　金：自然科学基金资助项目(No50872066;No50323006);山东省优秀中青年奖励基金资助项目(No2006BS04023)

摘　　要：采用助熔剂法生长了不同Yb3+掺杂量的Ybx:Gd0.20Y0.8-xAl3(BO3)4(Yb:GdYAB)。对比分析Yb3+掺杂量对晶体的晶胞参数、室温吸收光谱、荧光光谱、荧光寿命、比热等性质的影响,结果表明,Yb3+掺杂量对晶体的生长、光谱和比热有较大的影响。随着Yb3+掺杂量的增加,吸收峰的半波宽增大,吸收强度提高。随着Yb3+掺杂量的增加,Yb:GdYAB晶体的荧光光谱的强度下降,荧光寿命逐渐降低。随着Yb3+掺杂量的增加,Yb:GdYAB晶体的比热逐渐变小。研究结果表明,选择适中的Yb3+掺杂量,不仅有利于Yb:GdYAB晶体的生长,也能保证各种性能都较优良,更有利于实现自倍频激光的输出。The Ybx：Gd0.20Y0.8-xAl3（BO3）4 （Yb：GdYAB） crystals with different Yb3＋ doping concentration have been grown by the flux method.The effect of the Yb3＋ doping concentration on the cell parameter,absorption spectra at room temperature,fluorescence spectra,fluorescent life and the specific heat has been analyzed contrastively.The results showed that the Yb3＋ doping concentration had great effect on the crystal,the spectra and the specific heat of the crystal.With the Yb3＋ doping concentration increasing,the full width at half maximum of the absorption peak was increased,but the intensity of the fluorescent spectra and the fluorescent life were decreased gradually,and the specific heat of the Yb：GdYAB was became smaller.The results showed the choice of proper Yb3＋ doping concentration not only had profit for the growth of the Yb：GdYAB crystal,but also was able to realize good properties,and more profitable for realizing the laser output.

关 键 词：Ybx:Gd0.20Y0.8-xAl3(BO3)4 Yb3+掺杂 光谱性质 吸收光谱 荧光光谱 

分 类 号：TN804[电子电信—信息与通信工程] O782.4[理学—晶体学]