Temperature Dependence of Photoinduced Birefringence in an Azobenzene Polymer
Temperature Dependence of Photoinduced Birefringence in an Azobenzene Polymer作者机构：Department of Physics Shanghai Jiao Tong University Shanghai 200240
出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)
年 卷 期：2007年第24卷第2期
页 面：450-453页
核心收录：
学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学]
基 金：Supported by the National Natural Science Foundation of China under Grant No 10675083 and the Applied Materials Shanghai Research and Development Fund (0416)
主 题：REVERSIBLE OPTICAL STORAGE AZO-DYE AMORPHOUS POLYMERS FILMS ORIENTATION BACTERIORHODOPSIN COPOLYMERS ANISOTROPY
摘 要：The photoinduced birefringence in an azobenzene polymer is investigated at different temperatures between -20℃ to 50℃. It is found that there is a peak value of photoinduced birefringence in the temperature dependence of the photoinduced birefringence under a certain pumping intensity. With the pump light in 90mW/cm^2, the peak value of the photoinduced birefringence appeared at about 0℃ C. The effect of temperature on the photoinduced birefringence is discussed using the competition mechanism between the photoinduced reorientation and the thermal random motion.
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