Research progress of third-order optical nonlinearity of chalcogenide glasses*

Project supported by the National Natural Science Foundation of China (Grant No. 61675106), the National Key Research and Development Program of China (Grant No. 2016YFB0303803), and the K C Wong Magna Fund in Ningbo University.

Zhang Xiao-Yu1, 2, 3, Chen Fei-Fei1, 2, †, Zhang Xiang-Hua4, Ji Wei5
       

Dependence of nonlinear refractive index (n2) on laser intensity for Ag content x = 0 and x = 20 at.% (Ogusu K et al. 2004).[55]