INVESTIGATION OF THE NONLINEAR OPTICAL PROPERTIES OF THE SALEN-H-2 LIGAND USING Z-SCAN TECHNIQUE

Background: nonlinear optical properties of organic materials are widely used in optical switching and optical labeling. Methods: In this study, nonlinear optical properties of Salen-H2 (N, N'-ethylenebis (salicylideneimine)) ligand have been investigated. Linear optical responses of Salen-H2 have been studied using Uv-Vis spectroscopy. Non-linear refractive index and non-linear absorption coefficient of this ligand have been calculated using z scan. The scan method has been studied with the open and closed aperture. Results: Non-linear refractive index and absorption coefficient are related to the real and imaginary components of third order susceptibility coefficient, respectively. Conclusions: Using Z scan method, the value of the nonlinear refractive index is calculated of the order of 10(-5 center dot)cm(2)/omega and is positive.