Optimization of Photopolymer Materials for the Fabrication of a Holographic Waveguide

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Title: Optimization of Photopolymer Materials for the Fabrication of a Holographic Waveguide
Authors: Neipp, Cristian | Francés, Jorge | Martínez Guardiola, Francisco Javier | Fernandez, Roberto | Alvarez, Mariela L. | Bleda, Sergio | Ortuño, Manuel | Gallego, Sergi
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. Instituto Universitario de Física Aplicada a las Ciencias y las Tecnologías
Keywords: Photopolymers | Diffraction gratings | Holographic waveguide | Holography
Knowledge Area: Física Aplicada | Teoría de la Señal y Comunicaciones
Issue Date: 26-Aug-2017
Publisher: MDPI
Citation: Neipp C, Francés J, Martínez FJ, Fernández R, Alvarez ML, Bleda S, Ortuño M, Gallego S. Optimization of Photopolymer Materials for the Fabrication of a Holographic Waveguide. Polymers. 2017; 9(9):395. doi:10.3390/polym9090395
Abstract: In this work, we present a method of manufacturing an optical see-through display based on a holographic waveguide with transmission holograms that couple the incident light between air and the glass substrate, accomplishing total internal reflection. The holograms (slanted transmission gratings with a spatial frequency of 1700 lines/mm) were recorded on a polyvinyl alcohol acrylamide (PVA/AA) photopolymer. We will also show that the addition of N,N′-methylene-bis-acrylamide (BMA) to the composition of the photopolymer allows the achievement of the index modulations necessary to obtain high diffraction efficiencies in non-slanted diffraction gratings of 1000 and 2200 lines/mm, and also in slanted gratings of 1700 lines/mm (which are the base of the optical system proposed).
Sponsor: Work supported by the “Ministerio de Economía, Industria y Competitividad” of Spain (projects FIS2014-56100-C2-1-P and FIS2015-66570-P) and by the “Generalitat Valenciana” of Spain (projects PROMETEO II/2015/015).
URI: http://hdl.handle.net/10045/69427
ISSN: 2073-4360
DOI: 10.3390/polym9090395
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Peer Review: si
Publisher version: http://dx.doi.org/10.3390/polym9090395
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