The electro-optical (EO) properties of poly(methyl methacrylate) and the photopolymer poly(vinyl cinnamate) doped with varying concentrations of the EO chromophore 2-Methyl-4-nitroaniline were measured. The EO polymers were embedded in Fabry-Pérot etalons for the simultaneous determination of the Pockels and Kerr coefficients from measurements of the fringe shift induced by an external electric field. It was found that the host polymer has a significant impact on the EO performance and that the undoped host polymers exhibit a significant Pockels effect. Moreover, the Kerr effect provides a substantial contribution of 27% to the total change of the refractive index at relatively high electric field strengths of E = 91.2 MV m⁻¹.

中文翻译：

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在可见波长范围内具有高透明度的掺杂聚合物的电光特性

测量了聚（甲基丙烯酸甲酯）和光聚合物聚（肉桂酸乙烯酯）掺杂不同浓度的 EO 生色团 2-甲基-4-硝基苯胺的光电 (EO) 特性。将 EO 聚合物嵌入 Fabry-Pérot 标准具中，用于通过测量由外部电场引起的条纹位移来同时确定 Pockels 和 Kerr 系数。发现主体聚合物对 EO 性能有显着影响，未掺杂的主体聚合物表现出显着的普克尔斯效应。此外，在E = 91.2 MV m ^{-1 的}相对高电场强度下，克尔效应对折射率的总变化提供了 27% 的实质性贡献。