BENZYLIDENE DERIVATIVE CHROMOPHORES FOR PHOTOREFRACTIVE COMPOSITIONS

摘要

Described herein are benzylidene derivative chromophores that are useful in forming compositions that are photorefractive upon irradiation by multiple laser wavelengths across the visible light spectrum. Embodiments of the photorefractive composition comprise a polymer matrix and a chromophore, wherein the chromophore is represented by general formula (II), as defined herein. The photorefractive composition can be used in various optical devices.