二芳基乙烯薄膜双稳态全光开关的实验研究  

Experimental study of bistable all-optical switching based on diarylethene film

作　　者：许棠[1] 刘如军[1] 王胜[1] 姚江宏[2] 赵珉[1] 

机构地区：[1]岭南师范学院信息科学与技术学院,广东湛江524048 [2]南开大学物理科学学院,天津300071

出　　处：《光电子．激光》2016年第1期1-5,共5页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金(11574158);广东省自然科学基金(S2013010012022);湛江市科技攻关(2012C3103023)资助项目

摘　　要：采用二芳基乙烯(DA,diarylethene)材料顺-1,2-二氰基-1,2-双(2,4,5-三甲基-3-噻吩基)乙烯cis-1,2-Dicyano-1,2-bis(2,4,5-trimethyl-3-thienyl)ethene掺杂到聚甲基丙烯酸甲酯(PMMA)制成有机掺杂薄膜样品(掺杂质量百分比为10%),基于薄膜光致吸收特性的变化构建了有机掺杂薄膜双稳态全光开关,分别以波长为375nm的紫外激光(CW,40mW)和波长为532nm的可见激光(CW,5 mW)作为激发光,以波长为632.8nm的He-Ne激光(CW,3μW)为探测光,实验研究并获得了薄膜样品的双稳态全光开关实验结果,开关信号的调制深度为8.2%,开关上升时间约为36s,下降时间约为47s。根据光致变色系统二能级理论,对全光开关的实验结果和机理作了较深入分析。本文的双稳态全光开关具有简单容易实现的特点,作为一种低速的双稳态全光开关有潜在应用价值。Cis-1,2-dicyano-1,2-bis（2,4,5-trimethyl-3-thienyl）ethane diarylethene-doped polymer methyl methacrylate（PMMA）film samples were prepared（with weight percent of 10%）.Based on the photoinduced change of the film absorption,the bistable all-optical switching based on diarylethene doped films is composed.375nm（CW,40mW）and 532nm（CW,5mW）lasers were used as exciting light to irradiate the film samples,respectively,and 632.8nm（CW,3μW）laser was as the probe light,we obtain the bistable all-optical switching by using the film samples in experiment,and the modulation depth of the switching is 8.2% with rising time of 36 sand down time of 47 s.Based on the two level photochromic theory,the experimental results and the mechanism of the switching are analyzed deeply.The bistable all-optical switching has advantages of simplicity and being easy to realize,so it has the potential application value in the development of low speed all-optical switching.

关 键 词：二芳基乙烯(DA) 全光开关 双稳态 

分 类 号：TN929.1[电子电信—通信与信息系统]