An Automated Setup for Investigating Nonlinear Optical Characteristics of Various Materials by the Z -scan Method

An automated setup for measuring nonlinear optical parameters (nonlinear refractive indices, third-order nonlinear susceptibilities, nonlinear absorption coefficients) of various materials by the Z -scan method has been developed. Using this system, these parameters were determined for fullerene-doped polyimide films, colloidal solutions of metals, semiconductor chalcogenide films, dye solutions, and metal-doped polyvinylpyrrolidone.