Analysis of the Imaging Characteristics of Holographic Waveguides Recorded in Photopolymers

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Title: Analysis of the Imaging Characteristics of Holographic Waveguides Recorded in Photopolymers
Authors: Neipp, Cristian | Taleb, Soumia Imane | Francés, Jorge | Fernandez, Roberto | Puerto, Daniel | Calzado Estepa, Eva María | Gallego, Sergi | Beléndez, Augusto
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 | Óptica
Date Created: 29-May-2020
Issue Date: 3-Jul-2020
Publisher: MDPI
Citation: Neipp C, Taleb SI, Francés J, Fernández R, Puerto D, Calzado EM, Gallego S, Beléndez A. Analysis of the Imaging Characteristics of Holographic Waveguides Recorded in Photopolymers. Polymers. 2020; 12(7):1485. doi:10.3390/polym12071485
Abstract: In this work, we study the imaging characteristics of an optical see-through display based on a holographic waveguide. To fabricate this device, two transmission holograms are recorded on a photopolymer material attached to a glass substrate. The role of the holograms is to couple the incident light between air and the glass substrate, accomplishing total internal reflection. The role of noise reflection gratings and shrinkage on the imaging characteristics of the device will be also explored. The holograms (slanted transmission gratings with a spatial frequency of 1690 lines/mm) were recorded on a polyvinyl alcohol acrylamide holographic polymer dispersed liquid crystal (HPDLC) material. We will show that sufficient refractive index modulation is achieved in the material, in order to obtain high diffraction efficiencies. We will demonstrate that the final device acts as an image formation system.
Sponsor: This research was funded by The Ministerio de Ciencia e Innovación (Spain) grant number FIS2017-82919-R/(MINECO/AE/FEDER, UE). R.F. acknowledge the financial support by the Generalitat Valenciana (Spain) grant number APOSTD/2018/084.
ISSN: 2073-4360
DOI: 10.3390/polym12071485
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2020 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 (
Peer Review: si
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