利用波导技术研究液晶S_A相的光学特性  

Optical Wave-Guid Study of Homeotropically Aligned Ferroelectric Liquid Crystal in S_A Phase

作　　者：公猛男 

机构地区：[1]中国科学院长春物理研究所

出　　处：《液晶通讯》1993年第2期52-58,共7页

摘　　要：本文介绍了利用波导技术测量液晶分子光学特性的方法.并用这种这种方法研究了铁电液晶(简称FLC)在S_A相时分子垂直排列的光学特性.通过计算机对P—P和S—S偏振理论与实验反射率数据进行了拟合计算,测出了S_A相的介电常数.Optical wave-guided tchnique is used to study the optical characteristic of a thin ferroelectric liquid crystal layer in here. A sample geometry which allows the excitation of optic modes in a ferroelectric liquid crystal cell is presented and the data obtain in terms of reflectivity. The data is analysed by modelling the expected reflectivity from such a cell for a selection of proposed models for the optic tensor configuration. Model where the smectic layering lies perpendicular to the cell surfaces is obtained and values for ε(?) ε are obtained in SA phase.

关 键 词：波导 铁电液晶 光学特性 液晶分子 偏振 FLC 反射率 介电常数 拟合 SA 

分 类 号：O484[理学—固体物理] O753.2[理学—物理]