Physical and effective optical thickness of holographic diffraction gratings recorded in photopolymers

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Title: Physical and effective optical thickness of holographic diffraction gratings recorded in photopolymers
Authors: Gallego, Sergi | Ortuño, Manuel | Neipp, Cristian | Márquez, Andrés | Beléndez, Augusto | Pascual, Inmaculada | Kelly, John V. | Sheridan, John T.
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 | University College Dublin. Departament of Electronic and Electrical Engineering
Keywords: Holography | Holographic recording materials | Volume holographic gratings
Knowledge Area: Óptica | Física Aplicada
Date Created: 10-Feb-2005
Issue Date: 21-Mar-2005
Publisher: Optical Society of America
Citation: GALLEGO RICO, Sergi, et al. "Physical and effective optical thickness of holographic diffraction gratings recorded in photopolymers". Optics Express. Vol. 13, No. 6 (March 2005). ISSN 1094-4087, pp. 1939-1947
Abstract: In recent years the interest in thick holographic recording materials for storage applications has increased. In particular, photopolymers are interesting materials for obtaining inexpensive thick dry layers with low noise and high diffraction efficiencies. Nonetheless, as will be demonstrated in this work, the attenuation in depth of light during the recording limits dramatically the effective optical thickness of the material. This effect must be taken into account whenever thick diffraction gratings are recorded in photopolymer materials. In this work the differences between optical and physical thickness are analyzed, applying a method based on the Rigorous Coupled Wave Theory and taking into account the attenuation in depth of the refractive index profile. By doing this the maximum optical thickness that can be achieved can be calculated. When the effective thickness is known, then the real storage capacity of the material can be obtained.
Sponsor: This work was supported by the “Oficina de Ciencia y Tecnología” (Generalitat Valenciana, Spain) under projects GV01-130 GV04A/574 and GV04A/565 and by Enterprise Ireland through Research Innovation Found and Science Foundation Ireland through the Basic Research Program.
URI: http://hdl.handle.net/10045/9139
ISSN: 1094-4087
DOI: 10.1364/OPEX.13.001939
Language: eng
Type: info:eu-repo/semantics/article
Rights: 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-13-6-1939. 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
Publisher version: http://dx.doi.org/10.1364/OPEX.13.001939
Appears in Collections:INV - GHPO - Artículos de Revistas

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