Abstract

Photo-induced anisotropy measurements were carried out in thin films of azopolymers PEPC with Solvent Yellow 3, with the concentrations of 10 and 30 wt % of polymers with azo groups in their side-chain. The experimental dependences of the azimuths of the probe beam at the pump beam angles for samples were studied. The photoinduced dependence of the sample birefringence of the probe beam at the incident polarization angle of the pump beam was carried out by the polarimetric method for the studied samples. The geometric phase of anisotropic carbazole-containing azopolymers, in contrast to the dynamic phase, can be measured by the proposed polarimetric method without involving interferometry methods. This is possible because the geometric phase is not controlled by the difference in optical paths but is the result of a change of polarization inside the films due to photoinduced changes in its spatial structure.

中文翻译：

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光致异构SY3偶氮染料发色团掺杂PEPC聚合物的旋光特性

摘要

在含溶剂黄 3 的偶氮聚合物 PEPC 薄膜中进行了光诱导各向异性测量，侧链中含有偶氮基团的聚合物浓度分别为 10 和 30 wt%。研究了样品泵浦光束角度下探测光束方位角的实验依赖性。通过偏振法对所研究的样品进行了在泵浦光束的入射偏振角下探测光束的样品双折射的光致依赖性。与动态相相比，各向异性含咔唑偶氮聚合物的几何相可以通过所提出的偏振方法来测量，而不涉及干涉测量方法。这是可能的，因为几何相位不是由光路差异控制的，而是由于其空间结构的光致变化而导致薄膜内部偏振变化的结果。