Classical polarimetric method revisited to analyse the modulation capabilities of parallel aligned liquid crystal on silicon displays

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Title: Classical polarimetric method revisited to analyse the modulation capabilities of parallel aligned liquid crystal on silicon displays
Authors: Márquez, Andrés | Martínez Guardiola, Francisco Javier | Gallego, Sergi | Ortuño, Manuel | Francés, Jorge | 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: Liquid cristal on silicon displays | Parallel aligned | Retardance measurement | Phase-only modulation | Spatial light modulation | Flicker | Diffractive optics
Knowledge Area: Óptica | Física Aplicada
Date Created: Jun-2012
Issue Date: 15-Oct-2012
Publisher: SPIE, The International Society for Optics and Photonics
Citation: MÁRQUEZ RUIZ, Andrés, et al. "Classical polarimetric method revisited to analyse the modulation capabilities of parallel aligned liquid crystal on silicon displays". En: Optics and Photonics for Information Processing VI / edited by Abdul A. S. Awwal, Khan M. Iftekharuddin. Bellingham, Wash. : SPIE, 2012. (Proceedings of SPIE; Vol. 8498). ISBN 978-0-81949-215-9, pp. 84980L-1/11
Abstract: Novel liquid crystal on silicon displays (LCoS) technology has found widespread use in a number of applications dealing with the spatial modulation of the properties of a light wavefront. Parallel aligned LCoS (PA-LCoS) are especially interesting since they provide phase-only modulation with no coupling of amplitude modulation. However, typically LCoS are digitally addressed and this has been proven as a drawback since it causes fluctuations in the phase modulation. In this work we concentrate on PA-LCoS. We analyse the application of a classical polarimetric method for retardance measurement, which makes use of only linearly polarized light, typically used in wave plates. We analyse the effect of phase fluctuations on the measurements and provide a refinement of the method which allows estimating both the average retardance and the magnitude of the phase fluctuation. We demonstrate both theoretically and experimental that this extension of a classical method is both simple and very well suited for the measurement of the modulation properties of novel PA-LCoS.
Sponsor: This work was supported by the Ministerio de Trabajo y Competitividad of Spain under projects FIS2011-29803-C02-01 and FIS2011-29803-C02-02 and by the Generalitat Valenciana of Spain (projects PROMETEO/2011/021 and ISIC/2012/013).
ISBN: 978-0-81949-215-9
ISSN: 0277-786X
DOI: 10.1117/12.929677
Language: eng
Type: info:eu-repo/semantics/article
Rights: Copyright 2012 Society of Photo-Optical Instrumentation Engineers. This paper was published in Proceedings of SPIE, vol. 8498, 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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