3-dimensional characterization of thick grating formation in PVA/AA based photopolymer

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Títol: 3-dimensional characterization of thick grating formation in PVA/AA based photopolymer
Autors: Gallego, Sergi | Ortuño, Manuel | Neipp, Cristian | Márquez, Andrés | Beléndez, Augusto | Fernandez-Varo, Helena | Pascual, Inmaculada
Grups d'investigació o GITE: Holografía y Procesado Óptico
Centre, Departament o Servei: Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal | Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía
Paraules clau: Holography | Holographic recording materials | Volume holographic gratings
Àrees de coneixement: Óptica | Física Aplicada
Data de creació: 3-de març-2006
Data de publicació: 12-de juny-2006
Editor: Optical Society of America
Citació bibliogràfica: GALLEGO RICO, Sergi, et al. "3-dimensional characterization of thick grating formation in PVA/AA based photopolymer". Optics Express. Vol. 14, No. 12 (June 2006). ISSN 1094-4087, pp. 5121-5128
Resum: Large thickness is required in holographic recording materials to be used as holographic memories. Photopolymers have proved to be a good alternative to construct holographic memories. Nevertheless, modeling the behavior of thick layers poses some problems due to high absorption of the dye, as discussed in previous papers. In this study, the gratings stored in photopolymers based on polyvinylalcohol/acrylamide (PVA/AA) are analyzed considering the attenuation of light in depth. This is done by fitting the theoretical results, predicted by a model that considers this effect, to the experimental results obtained using diffraction gratings recorded in PVA/AA based photopolymer. In order to determine the diffraction efficiency at the first Bragg angle, an algorithm based on the rigorous coupled wave theory is used. Also, the characteristics of the gratings obtained using different recording intensities are analyzed, and the effective optical thickness is seen to increase as the intensity is increased.
Patrocinadors: This work was supported by the “Ministerio de Educación y Ciencia”, Spain, under projects FIS2005-05881-C02-01 and FIS2005-05881-C02-02.
URI: http://hdl.handle.net/10045/9123
ISSN: 1094-4087
DOI: 10.1364/OE.14.005121
Idioma: eng
Tipus: info:eu-repo/semantics/article
Drets: This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-12-5121. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Revisió científica: si
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