Nonlinear optical properties of tin-phthalocyanine thin films

Abstract The nonlinear optical properties of evaporated tin–phthalocyanine thin films were investigated through absorption measurement, atomic force microscopy, and transmissivity measurement using a z -scan method. The pyramidal molecules fabricated by vacuum evaporation while applying a high electric field parallel to the substrate had large third-order nonlinear susceptibility of 3.8×10 −8 esu.