Time fluctuations of the phase modulation in a liquid crystal on silicon display: characterization and effects in diffractive optics

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Title: Time fluctuations of the phase modulation in a liquid crystal on silicon display: characterization and effects in diffractive optics
Authors: Lizana Tutusaus, Ángel | Moreno Soriano, Ignacio | Márquez, Andrés | Iemmi, Claudio | Fernandez-Varo, Helena | Campos Coloma, Juan | Yzuel Giménez, María Josefa
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 Autónoma de Barcelona. Departamento de Física | Universidad Miguel Hernández. Departamento de Ciencia de Materiales, Óptica y Tecnología Electrónica | Universidad de Buenos Aires. Departamento de Física
Keywords: Displays | Liquid-crystal devices | Spatial light modulators | Phase shift
Knowledge Area: Óptica
Date Created: 30-Jul-2008
Issue Date: 6-Oct-2008
Publisher: Optical Society of America
Citation: LIZANA, Ángel, et al. "Time fluctuations of the phase modulation in a liquid crystal on silicon display: characterization and effects in diffractive optics". Optics Express. Vol. 16, No. 21 (2008). ISSN 1094-4087, pp. 16711-16722
Abstract: In this paper we provide evidence of the temporal fluctuations of the phase modulation property of a liquid crystal on silicon (LCoS) display, and we analyze its effect when the device is used for displaying a diffractive optical element. We use a commercial twisted nematic LCoS display configured to produce a phase-only modulation, and we provide time resolved measurements of the diffraction efficiency that show rapid fluctuations of the phase modulation, in the millisecond order. We analyze how these fluctuations have to be considered in two typical methods for the characterization of the phase modulation: two beam interference and diffraction from a binary grating. We finally provide experimental results on the use of this device for displaying a computer generated hologram. A reduction of the modulation diffraction efficiency results from the phase modulation fluctuation.
Sponsor: We acknowledge financial support from the Spanish Ministerio de Educación y Ciencia (grants FIS2006-13037-C02-01 and FIS2006-13037-C02-02) and from Generalitat de Catalunya (grant ACI2003-42). C. Iemmi gratefully acknowledges the support of the Universidad de Buenos Aires and CONICET (Argentina).
URI: http://hdl.handle.net/10045/12546
ISSN: 1094-4087
DOI: 10.1364/OE.16.016711
Language: eng
Type: info:eu-repo/semantics/article
Rights: This paper was published in Optics Express 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: http://www.opticsinfobase.org/abstract.cfm?uri=oe-16-21-16711. 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
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