Fabrication of computer-generated phase holograms using photopolymers as holographic recording material

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Title: Fabrication of computer-generated phase holograms using photopolymers as holographic recording material
Authors: Pascual, Inmaculada | Márquez, Andrés | Beléndez, Augusto | Fimia Gil, Antonio | Campos Coloma, Juan | Yzuel Giménez, María Josefa
Research Group/s: Holografía y Procesado Óptico
Center, Department or Service: Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía | Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal | Universidad Miguel Hernández. Departamento de Ciencia de Materiales, Óptica y Tecnología Electrónica | Universidad Autónoma de Barcelona. Departamento de Física y Electrónica
Keywords: Holography | Holographic recording materials | Photopolymers | Computer generated holograms | Hologram copying
Knowledge Area: Óptica | Física Aplicada
Date Created: 1998
Issue Date: 1-Jun-1999
Publisher: SPIE, The International Society for Optical Engineering
Citation: PASCUAL VILLALOBOS, Inmaculada, et al. "Fabrication of computer-generated phase holograms using photopolymers as holographic recording material". En: Diffractive and holographic technologies, systems, and spatial light modulators VI : 27-29 January 1999, San Jose, California. Bellingham, Wash. : SPIE, 1999. (Proceedings of SPIE; Vol. 3633). ISBN 978-0-81943-103-5, pp. 302-305
Abstract: Photopolymers are studied as holographic recording material for computer-generated phase filters for pattern recognition by optical correlation. The analysis was performed using a copying process with a computer-generated filter, which is produced by means of a high resolution graphic device, as a master. In this work the low spatial frequency response of the photopolymer as holographic material is studied. The copying process used in this work consists of storing the pattern contained in the master in a photopolymer used as a holographic recording material. This photopolymer does not work in real-time, it is possible to store the holographic optical element for a long time because the dye is finished during exposition and the chemical process is not necessary after exposition. We used partially coherent light, from a high pressure mercury lamp. The photopolymer used in these experiments was composed of acrylamide and triethanolamine as the coinitiator, photoinitiated with a dye, yellow eoxine. Components were supported by a film of poly(vinylalcohol). The resulting thickness of the film was approximately 70 micrometers. Diffraction gratings and Fresnel lenses were obtained as phase holograms by index and thickness modulation, monitored with an electron microscope. First order diffraction efficiency achieved was 30%.
Sponsor: This work was financially supported by the Comisión Interministerial de Ciencia y Tecnología (CICYT) of Spain (project MAT97-0705-C02-02) and Dirección General de Enseñanza Superior del Ministerio de Educación y Cultura of Spain (project PB96-1134-C02-01).
URI: http://hdl.handle.net/10045/9295
ISBN: 978-0-81943-103-5
ISSN: 0277-786X
DOI: 10.1117/12.349321
Language: eng
Type: info:eu-repo/semantics/article
Rights: Copyright 1999 Society of Photo-Optical Instrumentation Engineers. This paper was published in Proceedings of SPIE, Vol. 3633, and is made available as an electronic reprint with permission of SPIE. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Peer Review: si
Publisher version: http://dx.doi.org/10.1117/12.349321
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