为了提高聚苯胺的非线性光学性能以及实际应用价值,使用原位聚合法制备了聚苯胺-碳纳米管复合体掺杂聚乙烯醇薄膜,并利用单光束z扫描技术,在波长532nm、脉宽8ns的条件下研究了这种材料的3阶非线性光学性质,计算其3阶非线性光学系数。结果表明,与聚苯胺本体相比,薄膜样品的非线性光学性能得到明显的提高,将其制备成薄膜为今后的实际应用打下基础。 In order to improve the nonlinear optical properties of polyaniline and its practical application value, a polyaniline-carbon nanotube composite doped polyvinylalcohol film was prepared by the in-situ polymerization method. The single-beam z-scan technique was used to obtain polyaniline The third-order nonlinear optical properties of this material were investigated at 8 ns, and the third-order nonlinear optical coefficients were calculated. The results show that compared with the polyaniline bulk, the nonlinear optical properties of the film samples are obviously improved, and the preparation of the film provides the basis for future practical application.