Kuo Wen-Kai, Li Zhi-Jian, Lin Hui-Chi, Chou Hsiao-Yu
Institute of Electro-Optical and Material Science, National Formosa University, 64 Wenhua Road, Huwei, Yunlin, 63208, Taiwan.
Appl Opt. 2011 Oct 20;50(30):5889-93. doi: 10.1364/AO.50.005889.
We propose an optical-sensitivity-enhanced external electro-optic (EO) measurement system using a poled polymer as an EO sensor. A pumping laser is used to induce the photoisomerization effect in a prepoled EO polymer to both enhance and maintain the noncentrosymmetric molecular orientation. This approach increases the EO coefficient and, hence, enhances the EO measurement sensitivity. Experimental results of an EO sensor made of DR1/PMMA show that this method can improve the sensitivity by at least a factor of 2.
我们提出了一种使用极化聚合物作为电光（EO）传感器的光灵敏度增强型外部电光测量系统。泵浦激光器用于在预极化的电光聚合物中诱导光异构化效应，以增强并维持非中心对称的分子取向。这种方法提高了电光系数，从而增强了电光测量灵敏度。由DR1/聚甲基丙烯酸甲酯制成的电光传感器的实验结果表明，该方法可将灵敏度提高至少2倍。
