半导体激光倍频晶体硫氰酸汞镉(CMTC)显微结晶的研究  

Study on Micro-crystallization of Cadmium Mercury Thiocyanate (CMTC) Crystal for Laser Diode Frequency Doubling

作　　者：袁多荣[1] 钟真武[1] 张吉果[1] 段秀兰[1] 郭世义[1] 王新强[1] 姜雪宁[1] 许东[1] 吕孟凯[1] 方奇[1] 

机构地区：[1]山东大学晶体材料国家重点实验室,济南250100

出　　处：《人工晶体学报》2001年第2期113-118,共6页Journal of Synthetic Crystals

基　　金：山东省杰出优秀中青年专家奖励基金 ;国家自然科学基金 (No .6 9890 2 30 );国家‘86 3’计划资助项目

摘　　要：采用显微结晶 ,系统地观察、研究了半导体激光 (LD)倍频材料CMTC晶体在KCl/H2 O的溶剂体系中 ,不同条件下的结晶习性。结果给出 :在KCl浓度为 3%～ 10 %范围 ,pH值为 3.0～ 4 .3范围时 ,结晶形态规则 ,各项生长速度均匀 ,结晶透明 ;pH值为 2 .0～ 3.0条件下 ,z轴方向生长速度变快 ,a轴方向生长速度变慢 ;杂质严重影响了结晶的质量和外形 ;溶液稳定性随时间的增长和温度的升高而逐渐变差。本文分析了CMTC单晶生长和定向生长适宜的溶液条件和关键。Crystallization behavior and habits of cadmium mercury thiocyanate (CMTC) crystal for laser diode frequency doubling in KCl/H 2O solvent systems with different KCl concentrations were observed and investigated by means of micro crystallization experiments.The results show that CMTC crystal exhibits regular crystalline morphologies,homogenous growth speed in different directions and is transparent when the concentration of KCl ranges from 3%-10% and pH value ranges from 3.0-4.3.When pH value ranges from 2.0-3.0,the growth speed along z axis direction increases and along a axis direction decreases.Impurities influence greatly crystalline quality and morphology.With time passing and temperature increasing the stability of solution becomes poor.Suitable solution conditions and key factors for CMTC crystal growth and oriented growth were put forward.

关 键 词：硫氰酸汞镉晶体 LD 显微结晶 半导体激光倍频晶体 CMTC 

分 类 号：O781[理学—晶体学] TN304.22[电子电信—物理电子学]