Multifunctional Carbazole Oligomer for Monolithic Photorefractive Materials.

Abstract

We have developed a novel multifunctional chromophore for photorefractive applications. This chromophore, a carbazole oligomer, possesses all the properties required for photorefractivity. Furthermore, because of its good film forming properties, it can be used for optical image processing. The photocarrier generation properties of this chromophore and its second-order nonlinear optical response in acceptor-substituted carbazoles were examined by xerographic discharge, second-harmonic generation, and electro-optic measurements. Photorefractivity was measured directly by two-beam coupling and four-wave mixing experiments.