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
       

(color online) Plots of (a) nonlinear refractive index (n2) and (b) nonlinear absorption coefficient (β) versus normalized photon energy (/Eg) for the ChGs, respectively (Wang T et al. 2014).[47]