Blazed grating theory to minimize the non-idealities in LCoS devices

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Title: Blazed grating theory to minimize the non-idealities in LCoS devices
Authors: Márquez, Andrés | Martínez Guardiola, Francisco Javier | Francés, Jorge | Ramirez, Manuel G. | Calzado Estepa, Eva María | Morales-Vidal, Marta | Gallego, Sergi | Pascual, Inmaculada
Research Group/s: Holografía y Procesado Óptico | Física de la Materia Condensada
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 crystal on silicon displays | Parallel aligned | Phase-only modulation | Spatial light modulation | Flicker | Fringing-field | Blazed gratings | Diffractive optics | Stokes polarimetry
Knowledge Area: Óptica | Física Aplicada | Tecnología Electrónica
Date Created: Jun-2019
Issue Date: 6-Sep-2019
Publisher: SPIE, The International Society for Optics and Photonics
Citation: A. Márquez, F. J. Martínez-Guardiola, J. Francés, M. G. Ramírez, E. M. Calzado, M. Morales-Vidal, S. Gallego, and I. Pascual "Blazed grating theory to minimize the non-idealities in LCoS devices", Proc. SPIE 11136, Optics and Photonics for Information Processing XIII, 1113613 (6 September 2019);
Abstract: Parallel-aligned liquid crystal on silicon (PA-LCoS) microdisplays are widely used in spatial light modulation applications, especially in those requiring phase-only modulation. One such application area is programmable diffractive optics which plays a very important role in modern optical imaging systems or in optical interconnections for optical telecommunications. Among the multilevel diffractive optical elements (DOEs) we focus on the important case of the blazed gratings. We develop the corresponding analytical expressions for the diffracted field where, as one of the novelties in the work, an analytical expression including the fill factor and the flicker is obtained. This enables to have a model against to compare the experimental results in a number of situations where fill factor, flicker, period, and number of quantization levels are the variables. This also enables to design appropriate compensation techniques to enhance the performance of the blazed gratings.
Sponsor: Work funded by Ministerio de Economía, Industria y Competitividad (Spain), projects FIS2017-82919-R (MINECO/AEI/FEDER, UE) and FIS2015-66570-P (MINECO/FEDER)); by Generalitat Valenciana (Spain), project PROMETEO II/2015/015 and GV/2019/021; and Universidad de Alicante (Spain), project GRE17-06.
ISSN: 0277-786X | 1996-756X (Online)
DOI: 10.1117/12.2530290
Language: eng
Type: info:eu-repo/semantics/conferenceObject
Rights: Copyright 2019 Society of Photo-Optical Instrumentation Engineers. This paper was published in Proceedings of SPIE, vol. 11136, 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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Appears in Collections:INV - Física de la Materia Condensada - Artículos de Revistas
INV - GHPO - Comunicaciones a Congresos, Conferencias, etc.
INV - GHPO - Artículos de Revistas
INV - Física de la Materia Condensada - Comunicaciones a Congresos, Conferencias, etc.

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