Study of nonlinear optical refractive index in thin films formed by bloom gelatin and organic materials : (Indigo carmine dye and phenol red Ph indicator)

Abstract

In this work we analyze nonlinear optical properties of the two organic materials (Indigo carmine dye and phenol red Ph indicator). Z-Scan technique was used to obtain nonlinear refractive index and we found that the order is of 10^-9 - 10^-10 (cm²/W).