Third Harmonic Generation of Azo-Based Thin Films

This paper presents investigation results of the linear and nonlinear optical properties for thin films containing azo-based compounds. Thin films were deposited on a glass substrate using spin coating technique. The linear optical properties were examined by using Absorption method. The nonlinear optical properties as well as Third Harmonic Generation were examined by means of Maker fringe technique by exploiting Nd:YAG laser at a wavelength 1064 nm. Third-order nonlinear optical susceptibility were calculated using theoretical model.