Laser-induced Thermal Index Grating and Its Relaxation Effectin Polyatomic Molecular Materials

作     者：Zhou Haiguang Chen ShuchaoMembers of the Physics Society of China, Members of the OpticsSociety of ChinaAddress: Physics Department, Xiamen University, Xiamen, ChinaTel: 27393, Xiamen, China Zhou Haiguang Chen ShuchaoMembers of the Physics Society of China, Members of the OpticsSociety of ChinaAddress: Physics Department, Xiamen University, Xiamen, ChinaTel: 27393, Xiamen, China

出 版 物：《光电子.激光》 (Journal of Optoelectronics.Laser)

年 卷 期：1989年第2期

页      面：105-106页

核心收录：

学科分类：07[理学] 0703[理学-化学] 

主　　题：Laser induced Thermal Index Grating and Its Relaxation Effectin Polyatomic Molecular Materials 

摘      要：The laser beam transmission can produce the laser-induced thermal index grating in polyatomic molecular materials. This grating effect has only a qualitative description in past published papers. In this paper we present a qualitative study of laser-induced thermal index grating and its relaation in polyatomic molecular *** optics bistability and degenerate four wave mixing arrangements, we have observed thermal index grating and its relaxation in nematic liquid crystales. The experiments were performed in solid, nematic and liquid phases of these materials. These experiments in solid phase of liquid crystals was performed and related physical mechanism was also discussed for the firsttime to our knowledge.