文献类型：期刊文献

中文题名：铁电液晶的非线性和动态响应

英文题名：Nonlinearity and Dynamic Response of Ferroelectric Liquid Crystal

作者：潘喜润[1];王炳奎[1];李国梅[1];顾懿[1];奚关根[2];张辉[3]

机构：[1]华东理工大学物理系;[2]华东理工大学化学系;[3]天马液晶研究开发中心

年份：1997

卷号：23

期号：4

起止页码：484

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;EI(收录号：1997113942088);Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

基金：上海市自然科学基金

语种：中文

中文关键词：液晶;非线性光学;动态响应;二次谐波;铁电液晶

外文关键词：liquid crystal; nonlinear optics; dynamic response; second harmonic

摘要：研究了双手性分子铁电液晶３Ｍ２ＣＰＯＯＢ的非线性光学性质。实验发现这种材料具有很大的自发极化强度（＞１０－３Ｃ／ｍ２），较易获得相位匹配及二次谐波的输出。测得二阶非线性光学系数、二次谐波强度与温度和液晶盒厚度的关系。在阶梯电场作用下，二次谐波强度动态响应为几百微秒到几百毫秒。
In ferroelectric liquid crystal with high polarization the dependence of the phase matched SHG intensity on cell thickness and temperature was studied. Sharp curve of phase matched SHG intensity was obtained and effective nonlinear optical cefficient was measured. We also studied the dynamic response of SHG under stepwise electric field, which was found to be composed of high speed response of hundreds of micro microseconds and comparatively slow response of hundreds of microseconds. Lastly we discussed these two responses on the basis of ferroelectric liquid crystal molecular structure.