Characterization of polyvinyl alcohol/acrylamide holographic memories with a first-harmonic diffusion model

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Title: Characterization of polyvinyl alcohol/acrylamide holographic memories with a first-harmonic diffusion model
Authors: Gallego, Sergi | Ortuño, Manuel | Neipp, Cristian | Márquez, Andrés | Beléndez, Augusto | Pascual, Inmaculada
Research Group/s: Holografía y Procesado Óptico
Center, Department or Service: Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal | Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía
Keywords: Holography | Holographic recording materials | Optical memories | Optical storage
Knowledge Area: Óptica | Física Aplicada
Date Created: 1-Feb-2005
Issue Date: 20-Oct-2005
Publisher: Optical Society of America
Citation: GALLEGO RICO, Sergi, et al. "Characterization of polyvinyl alcohol/acrylamide holographic memories with a first-harmonic diffusion model". Applied Optics. Vol. 44, No. 29 (Oct. 2005). ISSN 0003-6935, pp. 6205-6210
Abstract: Several theoretical models have been proposed to predict the behaviour of photopolymers as holographic recording materials. Basically these models have been applied to study thin layers (around 100 µm thick). The increasing importance of holographic memories recorded in photopolymers (thickness of > 500 µm) makes it necessary to extend the ideas proposed by these models to study thick photopolymer layers. We calculate the temporal evolution of the diffraction efficiencies for thick layers using a first harmonic diffusion model, and the results obtained are compared with the corresponding values for thin layers. Furthermore, the values of the average diffusivity of the polymer chains after the grating is formed are also obtained. In general, we find that the monomer and polymer diffusivity increases when higher values of thickness are used.
Sponsor: This work was supported by the Dirección General de Investigación y Transferencia Tecnológica (Generalitat Valenciana, Spain) under projects GV04A/565 and GV04A574.
ISSN: 0003-6935 (Print) | 1539-4522 (Online)
DOI: 10.1364/AO.44.006205
Language: eng
Type: info:eu-repo/semantics/article
Rights: This paper was published in Applied Optics 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: Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Peer Review: si
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