采用旋转涂布法在多孔硅(PS)中嵌入新型含偶氮苯与噻吩结构单元的共轭聚合物PDABTh,制备出聚合物PDABTh/PS复合膜。采用单光束反射Z扫描方法分别对PS和PDABTh/PS复合膜在532nm处的非线性折射率进行了测量。实验结果表明,复合材料三阶非线性光学效应较PS得到了明显增强,为新型共轭聚合物PDABTh/PS复合体系作为Si基非线性光学材料用于先进光电器件的设计提供了重要参考。 A novel polymer PDABTh / PS composite membrane was prepared by spin-coating a new type of conjugated polymer PDABTh containing azo-benzene and thiophene structural units in porous silicon (PS). The nonlinear refractive index of PS and PDABTh / PS composite films at 532 nm was measured by a single beam reflection Z-scan method. The experimental results show that the third-order nonlinear optical effect of composite material is obviously enhanced compared with that of PS, which provides an important reference for the design of advanced optoelectronic devices based on the new conjugated polymer PDABTh / PS composite system as a Si-based nonlinear optical material.