Implementation of ‘fmincon’ statistical tool in optimizing the SHG efficiency of polymeric films

Abstract

In this paper, we have studied nonlinear optical properties like second harmonic generation of organic composite polymeric films. Composite films are prepared using organic host polymer polyethersulfone and organic guest material metanitroaniline. Films are poled by contact poling method to attain the desired noncentrosymmetry. Poled films are characterized by Nd:YAG laser to analyze the second harmonic generation efficiency. Second harmonic intensity of films are evaluated applying ‘fmincon’ statistical tool, as a function of laser input power and metanitroaniline doping concentration.