Simulation of photorefractive effect in thin liquid crystal film

作     者：Kubytskyi, V. O. Reshetnyak, V. Y. Sluckin, T. J. Cox, S. J. 

作者机构：Natl Taras Shevchenko Univ Kyiv Fac Phys UA-03022 Kiev Ukraine Univ Southampton Sch Math Southampton Hants England Univ Southampton Sch Engn Sci Southampton Hants England 

出 版 物：《MOLECULAR CRYSTALS AND LIQUID CRYSTALS》 (分子晶体与液晶)

年 卷 期：2008年第489卷第1期

页      面：204-213页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：Royal Society Joint Project NATO INTAS Young Scientist Fellowship [1000019-6375] 

主　　题：finite-difference time-domain method non-linear optics photorefractive-like effect 

摘      要：We study the photorefractive effect in a thin liquid crystal grating by numerical simulation. The cell consists of homeotropically aligned liquid crystal film sandwiched between photo-conductive electrodes. A constant voltage is applied across the cell. The interference pattern from two impinging laser beams then causes a periodic modulation of the potential at the top and bottom surfaces of the liquid crystal cell. We compare results obtained by simulation with an analytical approach which uses the Geometrical Optics Approximation. The results show good agreement between these two methods.