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. |
(color online) Plots of figure of merit (FOM) versus normalized photon energy (hν/Eg) of the Ge–Ga–S ChGs after heat treatment at 466 °C for different times (Lin C et al. 2011).[ |