EBBA液晶的光学双稳态研究

Optical Bistability of EBBA Liquid Crystal

利用光自聚焦和Ｆ－Ｐ腔两种手段，对ＥＢＢＡ液晶进行了光学双稳态研究。实验是在６０μｍ液晶薄膜中采用连续Ａｒ＋激光器进行，确定出温度与光学双稳态和多级光学双稳态回线的关系，讨论了ＥＢＢＡ液晶在固态相和液晶相及其相变过程中光学双稳态的机制。

Using self focusing and Fabry Perot cavity arrangements,the optical bistability and multiple bistability of EBBA nematic liquid crystal films have been studied.The experiment was carried out with Ar + CW laser and samples of 60 μm thickness.The temperature dependence of the bistable and multiple bistable loops has been measured.The related mechanism of optical bistability in solid phase,nematic phase and phase transition of liquid crystalb.