乙基橙偶氮聚合物的光致双折射特性  

Characterization of Photoinduced Birefringence in Ethyl Orange Azo-dye-doped Polymer Films

作　　者：梁爱珍[1] 陈桂英[2] 许棠[1] 

机构地区：[1]湛江师范学院设备处,广东湛江524048 [2]中国科学院南海海洋研究所,广东广州510301

出　　处：《湛江师范学院学报》2006年第3期47-49,共3页Journal of Zhanjiang Normal College

基　　金：广东省自然科学基金资助项目(04011427);湛江师范学院博士基金资助项目(ZL0510)

摘　　要：用偶氮染料乙基橙(Ethyl Orange)掺杂到聚乙烯醇(PVA)制成了偶氮聚合物薄膜样品.用半导体激光器(532 nm,CW)为激发光并以线偏振氦氖激光(632.8 nm,CW)作为探测光,实验研究了乙基橙聚合物的光致双折射特性,其结论是乙基橙聚合物薄膜样品在较低的激发光功率下具有较大的光致双折射效应和快速的时间响应特性.The asobenzene doped polymer thin films with Ethyl Orange dye as the guest material and polyvinyl alcohol （PVA） as host material were prepared. In the experiment the YAG laser （532nm, CW） and the He-Ne laser （632. 8nm , CW） were used as exciting beam and probe beam respectively. The characteristics of photoinduced birefringence in the sample were researched by varying the power of the exciting beam, and it is concluded that the azobenzene doped polymer has an excellem effect of photoinduced birefringence and a good characteristic of the time response with the low exciting beam power.

关 键 词：乙基橙 偶氮聚合物 光致双折射 激发光 

分 类 号：TN253[电子电信—物理电子学] O631.24[理学—高分子化学]