Shrinkage measurament for holographic recording materials

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Título: Shrinkage measurament for holographic recording materials
Autor/es: Fernandez, Roberto | Gallego, Sergi | Márquez, Andrés | Francés, Jorge | Navarro-Fuster, Víctor | Neipp, Cristian | Ortuño, Manuel | Beléndez, Augusto | Pascual, Inmaculada
Grupo/s de investigación o GITE: Holografía y Procesado Óptico
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 Tecnologías
Palabras clave: Holography | Holographic materials | Optical materials | Photopolymers | Diffractive optics | Liquid crystals | Holographic data storage systems
Área/s de conocimiento: Óptica | Física Aplicada
Fecha de creación: 25-mar-2017
Fecha de publicación: 15-may-2017
Editor: SPIE, The International Society for Optics and Photonics
Cita bibliográfica: Roberto Fernández ; Sergi Gallego ; Andrés Márquez ; Jorge Francés ; Víctor Navarro ; Cristian Neipp ; Manuel Ortuño ; Augusto Beléndez ; Inmaculada Pascual; Shrinkage measurament for holographic recording materials. Proc. SPIE 10233, Holography: Advances and Modern Trends V, 102330C (May 15, 2017); doi:10.1117/12.2265180
Resumen: There is an increasing demand for new holographic recording materials. One of them are photopolymers, which are becoming a classic media in this field. Their versatility is well known and new possibilities are being created by including new components, such as nanoparticles or dispersed liquid crystal molecules in classical formulations, making them interesting for additional applications in which the thin film preparation and the structural modification have a fundamental importance. Prior to obtaining a wide commercialization of displays based on photopolymers, one of the key aspects is to achieve a complete characterization of them. In this sense, one of the main parameters to estimate and control is the shrinkage of these materials. The volume variations change the angular response of the hologram in two aspects, the angular selectivity and the maximum diffraction efficiency. One criteria for the recording material to be used in a holographic data storage application is the shrinkage, maximum of 0.5%. Along this work, we compare two different methods to measure the holographic recording material shrinkage. The first one is measuring the angle of propagation for both diffracted orders ±1 when slanted gratings are recorded, so that an accurate value of the grating vector can be calculated. The second one is based on interference measurements at zero spatial frequency limit. We calculate the shrinkage for three different photopolymers: a polyvinyl alcohol acrylamide (PVA/AA) based photopolymer, one of the greenest photopolymers whose patent belongs to the Alicante University called Biophotopol and on the last place a holographic-dispersed liquid crystal photopolymer (H-PDLC).
Patrocinador/es: This work was supported by the “Ministerio de Economía y Competitividad” (projects FIS2015-66570-P and FIS2014- 56100-C2-1-P) and by the “Generalitat Valenciana” of Spain (projects PROMETEOII/2015/015 and ISIC/2012/013).
URI: http://hdl.handle.net/10045/66607
ISBN: 9781510609679
ISSN: 0277-786X | 1996-756X (Online)
DOI: 10.1117/12.2265180
Idioma: eng
Tipo: info:eu-repo/semantics/conferenceObject
Derechos: Copyright 2017 Society of Photo-Optical Instrumentation Engineers. This paper was published in Proceedings of SPIE, vol. 10233, 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.
Revisión científica: si
Versión del editor: http://dx.doi.org/10.1117/12.2265180
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