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

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: http://hdl.handle.net/20.500.11770/142171
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