The linear and nonlinear optical properties of these compounds have been systematically studied . the following parts are included in this thesis : one - photon and two - photon fluorescence ; upconversion superradiance and cavity lasing properties ; the optical power limiting effect of these compounds ; and so on . tpa absorption coefficients have been got by z - scan method 3 、系统研究了它们的线性和非线性光学性质，主要包括：单、双光子荧光，上转换超辐射和腔激射性能及其效率，光限幅效应，用z - scan的方法得到了其双光子吸收截面。
