INFLUENCE OF PHOTOSENSITIZER IN LOW GLASS TRANSITION TEMPERATURE PHOTOREFRACTIVE POLYMERIC COMPOSITE

The two-beam coupling gain and phase-shift were measured in the low glass transition temperature photorefractive composites of poly(N-Vinylcarbazole) doped with plasticizer N-ethylcarbazole,electro-optic chromophore 2,5-dimethyl-4-(p-nitrophenylazo) anisole and various contents of photosensitizer fullerene C 60 -The influence of photosensitizer on the photorefractive behavior was studied-