ErCa_4O(BO_3)_3晶体的光谱分析  

Spectral Properties of ErCa_4O(BO_3)_3 Crystal

作　　者：江怀东[1] 王继扬[1] 宋仁波[1] 胡小波[1] 刘宏[1] 滕冰[1] 张承乾[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

出　　处：《中国激光》2002年第3期227-229,共3页Chinese Journal of Lasers

基　　金：国家重点基础研究规划;国家自然科学基金 (5 982 30 0 3)资助项目

摘　　要：采用Czochralski法生长了均匀透明的ErCa4 O(BO3 ) 3 (简称ECOB)晶体 ,测量了其室温吸收谱 ,并与 0 1mol的ErCl3 溶液的室温吸收谱进行了比较。根据Judd Ofelt理论 ,拟合出唯像强度参数 :Ω2 =1 6 73× 10 -2 0 cm2 ,Ω4=1 35 6× 10 -2 0 cm2 ,Ω6=0 15 6× 10 -2 0 cm2 。计算了各能级的辐射跃迁几率 AJ,J′,振子强度fJ ,J′,辐射寿命τ,荧光分支比 βJ′ 等 ,并根据这些光学参量 。The transparent and homogeneous ErCa4O(BO3)3(ECOB) crystal is grown by Czochralski method. The room temperature absorption spectra have been measured and compared with that of 0.1 mol ErCl3 solution. According to Judd-Ofelt theory, the spectral strength parameters: Ω2=1.673 × 10-20 cm2, Ω4=1.356 × 10-20 cm2, Ω6=0.156 × 10-20 cm2 of Er3+ ion have been fitted. The radiative transition probabilities AJ,J', oscillator strengths fJJ', radiative lifetime ς and the branching ratio βJ' have been calculated. From these parameters, the properties and applications were discussed.

关 键 词：ECOB晶体 JUDD-OFELT理论 光谱分析 

分 类 号：O433.4[机械工程—光学工程] O734[理学—光学]