In recent years, the development of organic materials for optoelectronics and photonics has been continuously progressing, driven by the prospect of manufacturing flexible, low-cost devices with tailorable properties for specific applications. Among the different functionalities investigated, the photorefractive (PR) one is relevant for a variety of applications, ranging from holography1,2 to image processing.3,4 Photorefractive materials are photoconductors in which the space redistribution of charges photogenerated by a nonuniform illumination creates an electric field. In turn, such spacecharge field affects the refractive index if the material exhibits nonlinear optical properties and/or spontaneous (or fieldinduced) birefringence. The resulting hologram is then phaseshifted with respect to the illumination pattern,5,6 a property unique to PR gratings and with important consequences for applications.

High Tg, Nonpoled Photorefractive Polymers

GOLEMME, Attilio
2009-01-01

Abstract

In recent years, the development of organic materials for optoelectronics and photonics has been continuously progressing, driven by the prospect of manufacturing flexible, low-cost devices with tailorable properties for specific applications. Among the different functionalities investigated, the photorefractive (PR) one is relevant for a variety of applications, ranging from holography1,2 to image processing.3,4 Photorefractive materials are photoconductors in which the space redistribution of charges photogenerated by a nonuniform illumination creates an electric field. In turn, such spacecharge field affects the refractive index if the material exhibits nonlinear optical properties and/or spontaneous (or fieldinduced) birefringence. The resulting hologram is then phaseshifted with respect to the illumination pattern,5,6 a property unique to PR gratings and with important consequences for applications.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11770/142171
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