Cr^(3+)∶LiCaAlF_6晶体生长和激光特性  

Crystal Growth and Laser Properities of Cr 3+ ∶LiCaAlF 6

作　　者：张尚安[1] 陶德节[1] 王爱华 吴路生[1] 魏世道 韩奇阳 

机构地区：[1]中国科学院安徽光学精密机械研究所

出　　处：《人工晶体学报》1998年第1期39-42,共4页Journal of Synthetic Crystals

基　　金：国家863资助

摘　　要：首次报道熔体提拉法生长Ｃｒ∶ＬｉＣＡＦ（Ｃｒ３＋∶ＬｉＣａＡｌＦ６）晶体的生长工艺，研制出质量较好的晶体尺寸达２０～２５×９０～１２０ｍｍ。测定了晶体对８０９ｎｍ红外波段的吸收系数μ为１０－２量级，晶体中无ＯＨ－。Ｃｒ∶ＬｉＣＡＦ可调谐灯泵激光器获得的宽带能量输出１．６Ｊ，阈值５０．５Ｊ，调谐范围为７３０～８４８ｎｍ，用ＫＤＰ调Ｑ，单脉冲宽度４８ｎｓ，峰值功率达１．３×１０６Ｗ。Single crystal of Cr 3+ ∶LiCaLF 6 were grown for the first time in china by CZ technique without pure Pt growth chamber or in a flowing atmosphere of HF. the dimension of crystals were up to  20～25×90～120mm.The absorption coefficient of crystal at 809nm was 10 -2 cm -1 and no traces of OH were found in the boules by infrared spectroscopy.A flashlamp pumped Cr∶LiCAF tunable laser output energy of 1.6J,laser threshold 50.5J, from 730～848nm were observed,pulse width 48ns,peakpower 1.3×10 6Wwere obtained by Q switching with KD P .

关 键 词：LiCaALF6 引上法 晶体生长 激光晶体 掺铬 性能 

分 类 号：TN245.06[电子电信—物理电子学]