Two diffusion photopolymer for sharp diffractive optical elements recording

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Title: Two diffusion photopolymer for sharp diffractive optical elements recording
Authors: Gallego, Sergi | Fernandez, Roberto | Márquez, Andrés | Ortuño, Manuel | Neipp, Cristian | Gleeson, Michael R. | Sheridan, John T. | 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 | III-V Materials and Devices, Photonics Center, Tyndall National Institute | School of Electrical, Electronic and Communications Engineering, College of Engineering and Architecture, Communications and Optoelectronic Research Centre, The SFI-Strategic Research Cluster in Solar Energy Conversion, University College Dublin
Keywords: Holography | Holographic recording materials | Photopolymers | Diffraction efficiency
Knowledge Area: Óptica
Date Created: 21-Apr-2015
Issue Date: 2-Jul-2015
Publisher: Optical Society of America
Citation: S. Gallego, R. Fernández, A. Márquez, M. Ortuño, C. Neipp, M. R. Gleeson, J. T. Sheridan, and A. Beléndez, "Two diffusion photopolymer for sharp diffractive optical elements recording," Opt. Lett. 40, 3221-3224 (2015). doi:10.1364/OL.40.003221
Abstract: Photopolymers as recording media are widely used in optical applications. In such materials, changes in the phase of the transmittance function are generated during exposure due to refractive index and thickness modulations. These changes arise primarily as a consequence of photopolymerization and mass transport processes. Characterizing polymers’ performance, for example, quantifying the value of monomer diffusion, is therefore very important. Applying index matching, the volume and surface optical effect are separated in an acrylamide/polyvinylalcohol (AA/PVA) material. Using a simplified model that includes the effects of the holes produced during polymerization, both hole and monomer diffusion are analyzed. The analysis presented indicates higher material sensitivity than previously estimated. The results also indicate the possibility of recording sharper diffractive optical elements profiles, like blazed gratings, having diffraction efficiencies higher than 80%.
Sponsor: Enterprise Ireland; Generalitat Valenciana of Spain (ISIC/2012/013, PROMETEOII/2015/015); Irish Research Council for Science, Engineering and Technology (National Development Fund); Ministerio de Economía y Competitividad of Spain (FIS2011-29803-C02-01); Science Foundation Ireland.
URI: http://hdl.handle.net/10045/47990
ISSN: 0146-9592 (Print) | 1539-4794 (Online)
DOI: 10.1364/OL.40.003221
Language: eng
Type: info:eu-repo/semantics/article
Rights: This paper was published in Optics Letters, 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: https://www.osapublishing.org/ol/abstract.cfm?uri=ol-40-14-3221. 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/OL.40.003221
Appears in Collections:INV - GHPO - Artículos de Revistas

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