量子电子学报, 2003, 20 (1): 104, 网络出版: 2006-05-15
偶氮侧链液晶聚合物薄膜中基于光致双折射效应长久光存储的机理探讨
Study on Long-time Optical Storage Based on Photoinduced Birefringence in Azobenzene Side-chain Liquid Crystal Polymer Film
摘要
本文比较了连续矾酸钇倍频激光(输出波长532 nm),脉冲Nd:YAG倍频激光(输出波长532 nm、脉宽8 ns、重复频率10 Hz)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[8],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.
Abstract
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.
王沛, 明海, 章江英, 鲁拥华, 谢建平, 刘键, 卢勇, 张其锦. 偶氮侧链液晶聚合物薄膜中基于光致双折射效应长久光存储的机理探讨[J]. 量子电子学报, 2003, 20(1): 104. 王沛, 明海, 章江英, 鲁拥华, 谢建平, 刘键, 卢勇, 张其锦. Study on Long-time Optical Storage Based on Photoinduced Birefringence in Azobenzene Side-chain Liquid Crystal Polymer Film[J]. Chinese Journal of Quantum Electronics, 2003, 20(1): 104.
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