采用金属离子注入技术制备了注入剂量分别为0.5×1017，1×1017，1.5×1017 cm-2的Zn纳米颗粒复合材料。结合共聚焦激光扫描显微镜和透射电子显微镜，观察了Zn纳米颗粒大小及其物相。利用单光束Z扫描技术，在波长为1064 nm的入射光作用下，分别测量了样品的非线性光学折射率系数和非线性光学吸收系数。结果表明，Zn纳米颗粒复合材料是自散焦反饱和吸收材料，随着注入剂量的增加，材料的三阶非线性光学系数有不同程度的增加。通过适当选择注入剂量的浓度，可得到在1064 nm波段样品的最佳三阶非线性光学系数。

Zn nanoparticles composites the different implantation doses of 0.5×1017, 1×1017, 1.5×1017 cm-2 are synthesized by metal ion implantation technology. Based on the confocal laser scanning microscope and transmission electron microscopy, the micro-structural properties of Zn nanoparticles are characterized. The nonlinear optical refraction and nonlinear optical absorption coefficients are measured at the wavelength of 1064 nm by using single beam Z-scan technique. The results show that Zn nanoparticles composites possess self-defocusing and reverse saturation absorption properties. Third-order nonlinear optical coefficients enhance with the increase of the implantation dose. The optimum third-order nonlinear optical coefficients will be obtained at the near infrared region of 1064 nm by selecting the implantation dose properly.