Mueller-Stokes characterization and optimization of a liquid crystal on silicon display showing depolarization

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Title: Mueller-Stokes characterization and optimization of a liquid crystal on silicon display showing depolarization
Authors: Márquez, Andrés | Moreno Soriano, Ignacio | Iemmi, Claudio | Lizana Tutusaus, Ángel | 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 Miguel Hernández. Departamento de Ciencia de Materiales, Óptica y Tecnología Electrónica | Universidad de Buenos Aires. Departamento de Física | Universidad Autónoma de Barcelona. Departamento de Física
Keywords: Displays | Polarimetry | Liquid-crystal devices | Spatial light modulators
Knowledge Area: Óptica
Date Created: 7-Aug-2007
Issue Date: 4-Feb-2008
Publisher: Optical Society of America
Citation: MÁRQUEZ RUIZ, Andrés, et al. "Mueller-Stokes characterization and optimization of a liquid crystal on silicon display showing depolarization". Optics Express. Vol. 16, No. 3 (4 Febr. 2008). ISSN 1094-4087, pp. 1669-1685
Abstract: In this paper we characterize the polarimetric properties of a liquid crystal on silicon display (LCoS), including depolarization and diattenuation which are usually not considered when applying the LCoS in diffractive or adaptive optics. On one hand, we have found that the LCoS generates a certain degree (that can be larger than a 10%) of depolarized light, which depends on the addressed gray level and on the incident state of polarization (SOP), and can not be ignored in the above mentioned applications. The main origin of the depolarized light is related with temporal fluctuations of the SOP of the light reflected by the LCoS. The Mueller matrix of the LCoS is measured as a function of the gray level, which enables for a numerical optimization of the intensity modulation configurations. In particular we look for maximum intensity contrast modulation or for constant intensity modulation. By means of a heuristic approach we show that, using elliptically polarized light, amplitude-mostly or phase-mostly modulation can be obtained at a wavelength of 633 nm.
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).
ISSN: 1094-4087
DOI: 10.1364/OE.16.001669
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: 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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