Holographic characteristics of a 1-mm-thick photopolymer to be used in holographic memories

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Title: Holographic characteristics of a 1-mm-thick photopolymer to be used in holographic memories
Authors: Ortuño, Manuel | Gallego, Sergi | García Llopis, Celia | Neipp, Cristian | 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 | Volume holography | Optical storage materials | Multiplex holography | Photopolymers
Knowledge Area: Óptica | Física Aplicada
Date Created: 25-Mar-2003
Issue Date: 10-Dec-2003
Publisher: Optical Society of America
Citation: ORTUÑO SÁNCHEZ, Manuel, et al. "Holographic characteristics of a 1-mm-thick photopolymer to be used in holographic memories". Applied Optics. Vol. 42, No. 35 (Dec. 2003). ISSN 0003-6935, pp. 7008-7012
Abstract: Poly(vinyl alcohol-acrylamide) photopolymers are materials of interest in the field of digital information storage (holographic memories). We analyzed the behavior of a 1-mm-thick photopolymer. Using a standard holographic setup, we recorded unslanted diffraction gratings. The material has high angular selectivity (0.4°), good sensitivity (88 mJ/cm2), and small losses caused by absorption and scattering of light. It also has a high maximum diffraction efficiency (70%). A significant induction period was seen in the material. The authors hypothesize that, during most of this induction period, polymerization does in fact take place but is not reflected in the appearance of the diffracted light until a certain threshold value of exposure is reached.
Sponsor: This research was supported by the Ministerio de Ciencia y Tecnología, Comisión Interministerial de Ciencia y Tecnología, Spain, under project MAT2000-1361-C04-04 and by Generalitat Valenciana, Spain, project GV01-130.
URI: http://hdl.handle.net/10045/9168
ISSN: 0003-6935 (Print) | 1539-4522 (Online)
DOI: 10.1364/AO.42.007008
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: http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-42-35-7008. 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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