Determination of electro-optic tensor coefficientsof organic thin film using Fabry-Parotinterferometric setup

Abstract: In this Masters thesis, a method for independent characterization of nonlinear electro-optic (EO) tensor components (r13, r33) of organic polymers is presented. Organic non-linear optical (NLO) polymers provide low cost and easily process able photonic devices. The characterization setup proposed in this thesis is controlled by a LabVIEW program that allows fast, accurate and automated measurement of r13 and r33. The setup measures transmission spectrum of a Fabry-Perot cavity, filled with an NLO polymer, as a function of incident angle. It uses the changes in refractive index in the polymer due to the electro-optic effect to measure the tensor components. This method is then utilized for characterization of a Polymethylmethacrylate (PMMA), Disperse Red1 (DR1) guest-host blend sample.