Study of the index matching for different photopolymers

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Título: Study of the index matching for different photopolymers
Autor/es: Fernandez, Roberto | Gallego, Sergi | Márquez, Andrés | Ortuño, Manuel | Marini, Stephan | Pascual, Inmaculada | Beléndez, Augusto
Grupo/s de investigación o GITE: Holografía y Procesado Óptico | Sismología-Riesgo Sísmico y Procesado de la Señal en Fenómenos Naturales
Centro, Departamento o Servicio: Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal | Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía | Universidad de Alicante. Instituto Universitario de Física Aplicada a las Ciencias y las Tecnología
Palabras clave: Holography | Holographic materials | Photopolymers | Diffractive optical elements | Refractive index
Área/s de conocimiento: Óptica | Física Aplicada
Fecha de creación: 25-jun-2015
Fecha de publicación: 9-sep-2015
Editor: SPIE, The International Society for Optics and Photonics
Cita bibliográfica: R. Fernández ; S. Gallego ; A. Márquez ; M. Ortuño ; S. Marini ; I. Pascual ; A. Beléndez. Study of the index matching for different photopolymers. Proc. SPIE 9598, Optics and Photonics for Information Processing IX, 95980A (September 9, 2015); doi:10.1117/12.2188349
Resumen: One of the most promising phase optical recording mediums are photopolymers. In these materials, the use of an index matching component permits a better conservation of the stored information and, additionally, the study of the molecules migration and shrinkage/swelling phenomena separately. In general, the transmitted beam has the information of the thickness and refractive index modulation mixed. Therefore, we propose the introduction of a coverplate besides with an index matching liquid in order to improve the characterization and the conservation. The index matching techniques have been classically used for holographic recording materials. In principle, to obtain an accurate index matching we have to choose a liquid with refractive index very close to the mean of the polymer one. Then, when shrinkage takes place during recording, mainly due to the polymerization, the liquid will fill up the generated grooves minimizing the diffractive effects produced by the relief structure. In fact, in this work we study different index matching components for different photopolymers. The photopolymers analyzed in this work have a polyvinyl alcohol (PVA) as a binder and two different main monomers: one has acrylamide and the other one sodium acrylate. We have recorded very low diffractive gratings and studied their conservation for different index matching components.
Patrocinador/es: Ministerio de Economía y Competitividad of Spain under project FIS2011-29803-C02-01 and by the Generalitat Valenciana of Spain under project ISIC/2012/013 and PROMETEOII/2015/015.
ISSN: 0277-786X
DOI: 10.1117/12.2188349
Idioma: eng
Tipo: info:eu-repo/semantics/conferenceObject
Derechos: Copyright 2015 Society of Photo-Optical Instrumentation Engineers. This paper was published in Proceedings of SPIE, vol. 9598, 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.
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