Generation of diffractive optical elements onto a photopolymer using a liquid crystal display

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Title: Generation of diffractive optical elements onto a photopolymer using a liquid crystal display
Authors: Márquez, Andrés | Gallego, Sergi | Ortuño, Manuel | Fernandez-Varo, Helena | Alvarez, Mariela L. | Beléndez, Augusto | Pascual, Inmaculada
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. Departamento de Óptica, Farmacología y Anatomía | Universidad de Alicante. Instituto Universitario de Física Aplicada a las Ciencias y las Tecnologías
Keywords: Imaging system | Liquid crystal display | Photopolymers | Diffractive optical elements | Spatial light modulator | Low spatial frequency
Knowledge Area: Óptica | Física Aplicada
Date Created: 15-Mar-2010
Issue Date: 14-May-2010
Publisher: SPIE, The International Society for Optical Engineering
Citation: MÁRQUEZ RUIZ, Andrés, et al. "Generation of diffractive optical elements onto a photopolymer using a liquid crystal display". En: Optical Modelling and Design : 5 May 2010, Bruxelles, Belgium / edited by Frank Wyrowski, John T. Sheridan, Jani Tervo, Youri Meuret. Bellingham, Wash. : SPIE, 2010. (Proceedings of SPIE; Vol. 7717). ISBN 978-0-81948-190-0, pp. 77170D-1/12
Abstract: Liquid crystal displays (LCDs) are widely used as spatial light modulators (SLMs) in many applications (optical signal processing, holographic data storage, diffractive optics...). In particular, as an alternative microoptics recording scheme we have explored the possibility to use a LCD to display the diffractive optical element (DOE) to be recorded onto a photosensitive phase material, so as to enhance the flexibility of the recording architecture. In this application the LCD acts as an amplitude dynamic transparency. By means of an optical system we image the function addressed to the LCD onto the recording material. The element to be recorded onto the phase material can be easily changed simply by changing the function addressed to the LCD. Among the recording materials, photopolymers provide very attractive capabilities. They present a great flexibility in their composition, the recording layer can be manufactured in a wide range of possible thicknesses, and they are inexpensive. These properties make it an interesting material to generate the phase DOEs. Both the composition and the thickness need to be optimized for the application to DOEs. In this work we explore the results dealing with the calibration of the recording setup and the photopolymer material. We also analyse the performance of phase-only diffractive lenses generated onto the photopolymer. Promising results have been obtained, where the focalization of the diffractive lenses generated has been demonstrated.
Sponsor: This work was supported by “Ministerio de Ciencia e Innovación”, Spain, under projects FIS2008-05856-C02-01 and FIS2008-05856-C02-02), and by the “Generalitat Valenciana”, Spain (projects ACOMP/2009/150, ACOMP/2009/160 and GVPRE/2008/137).
ISBN: 978-0-81948-190-0
ISSN: 0277-786X
DOI: 10.1117/12.854786
Language: eng
Type: info:eu-repo/semantics/article
Rights: Copyright 2010 Society of Photo-Optical Instrumentation Engineers. This paper was published in Proceedings of SPIE, vol. 7717, 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.
Peer Review: si
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