Laser-induced nonlinearities in a polymer solution

Objective: The aim of the present work is to find a material that has high nonlinear optical properties and can be used as an optical limiter. Methods: A (Aniline, Anisidine and Toluidine) polymer is prepared. The nonlinear optical (NLO) properties of the prepared polymer solution are studied under irradiation with continuous wave (cw), low power, visible laser beams. Results: The polymer index of nonlinear refraction (INR) is determined via two techniques viz., the far-field diffraction patterns (DPs) and the Z-scan. Optical limiting (OLg) and all-optical switching (AOS) properties of the prepared polymer are tested. The far-field (DPs) are theoretically calculated using the Fresnel-Kirchhoff (F.K) integral.

Automated summary

The objective of this study is to find a material with high nonlinear optical properties and test its optical limiting and all-optical switching properties. The nonlinear refractive index of the material is determined using two techniques, and theoretical calculations are performed on the far-field diffraction patterns.