摘要
本文比较了连续矾酸钇倍频激光(输出波长532nm),脉冲Nd:YAG倍频激光(输出波长532nm、脉宽8ns、重复频率10Hz)作用下,偶氮侧链液晶聚合物薄膜的光致双折射效应和光记录特性。根据实验结果和数值模拟情况,引入温度效应,提出分子团积和主链链段取向效应,给出了基于光致双折射效应长久光信息记录的解释。
The properties of photoinduced birefringence and optical storage in azobenzene side-chain liquid crystal polymer films are investigated by means of CW laser at 532 nm and the Q-switched (8 ns) second-harmonic generation Nd:YAG pulse. According to the experimental results and numerical simulation, long-time optical storage based on photoinduced birefringence related to temperature field, molecular accumulation, molecular chain orientation are explained.
出处
《量子电子学报》
CAS
CSCD
北大核心
2003年第1期104-108,共5页
Chinese Journal of Quantum Electronics
基金
国家重点基础研究发展规划[NO.973(G1999033003)]资助项目
