Hologram multiplexing in acrylamide hydrophilic photopolymers

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Title: Hologram multiplexing in acrylamide hydrophilic photopolymers
Authors: Ortuño, Manuel | Márquez, Andrés | Fernandez-Varo, Helena | Gallego, Sergi | 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 | Photopolymers | Hologram multiplexing
Knowledge Area: Óptica | Física Aplicada
Date Created: 2-Apr-2007
Issue Date: 15-Mar-2008
Publisher: Elsevier
Citation: ORTUÑO SÁNCHEZ, Manuel, et al. "Hologram multiplexing in acrylamide hydrophilic photopolymers". Optics Communications. Vol. 281, Issue 6 (March 2008). ISSN 0030-4018, pp. 1354-1357
Abstract: Unslanted diffraction gratings are recorded in a 900 μm thick acrylamide photopolymer by means of peristrophic multiplexing. A solid state Nd:YAG (λ = 532 nm) laser is used as the recording beam, with a total incident intensity of 5 mW/cm2, and a He–Ne laser as the reconstruction beam. The dye concentration in the photopolymer is optimized so that it does not limit the dynamic range. Nine holograms are recorded using constant exposure time scheduling and variable exposure time scheduling. From the results obtained it may be deduced that optimization of the dye allows us to work in the linear response region of the photopolymer and at the same time obtain high values of diffraction efficiency for each hologram. An exponential increase in exposure time as the number of holograms increases enables the values of diffraction efficiency to be homogenized with regard to the case of constant exposure scheduling. In this way, better use is made of the dynamic range of acrylamide hydrophilic photopolymer.
Sponsor: This work was supported by Ministerio de Educación y Ciencia, Spain, under Projects FIS2005-05881-C02-01 and FIS2005-05881-C02-02.
URI: http://hdl.handle.net/10045/9353
ISSN: 0030-4018 (Print) | 1873-0310 (Online)
DOI: 10.1016/j.optcom.2007.11.014
Language: eng
Type: info:eu-repo/semantics/article
Peer Review: si
Publisher version: http://dx.doi.org/10.1016/j.optcom.2007.11.014
Appears in Collections:INV - GHPO - Artículos de Revistas

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