用Z扫描方法测量了系列羟基苯基卟啉化合物的非线性折射率n2和反饱和吸收系数β,由此算出了三阶非线性极化率(χ3),并分析了分子结构对其三阶非线性光学性质的影响.实验结果表明,它们具有大的反饱和系数和三阶非线性折射率,并且取代基数目和取代位置对实验结果有明显的影响. The nonlinear refractive index n2 and the reverse-saturation absorption coefficient β of the series of hydroxyphenyl porphyrins were measured by Z-scan method, and the third-order nonlinear polarizability (χ3) was calculated. The molecular structure was also analyzed for the third order Nonlinear optical properties.The experimental results show that they have large reverse saturation coefficient and third-order nonlinear refractive index, and the number of substituents and the substitution position of the experimental results have obvious effects.