甲基橙掺杂聚乙烯醇薄膜光致双折射的特性研究

Research on nature of photo-induced birefringence of Methyl Orange dye-doped PVA

介绍了在近代物理实验中开设偶氮染料甲基橙掺杂PVA薄膜的光致双折射特性实验.实验结果表明样品的光致双折射反应程度和激发光功率成正比例关系;在激发光功率一定的情况下,当激发光偏振方向与探测光偏振方向夹角为45°时样品的光致双折射反应程度达到最大.

This paper introduces the course of photo-induced birefringence characteristic experiment of MO the azo dye-doped PVA thin film in modern physics experiments. The laboratory finding shows that the sample＇s ex- tent of reaction of photo-induced birefringence is in direct proportion to its exciting light power; in the case of certain exciting light power and 45° included angle between exciting light polarization direction and detecting light po- larization direction, sample＇s extent of reaction of photo-induced birefringence achieves maximum.