Versatile simplified physical model for parallel aligned liquid crystal devices

Please use this identifier to cite or link to this item:
Información del item - Informació de l'item - Item information
Title: Versatile simplified physical model for parallel aligned liquid crystal devices
Authors: Márquez, Andrés | Martínez Guardiola, Francisco Javier | Francés, Jorge | Bleda, Sergio | Alvarez, Mariela L. | Pascual, Inmaculada | Gallego, Sergi | Beléndez, Augusto
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-crystal devices | Parallel-aligned | Birefringence | Spatial light modulators | Displays
Knowledge Area: Física Aplicada | Óptica
Date Created: 10-Jun-2018
Issue Date: 8-Sep-2018
Publisher: SPIE, The International Society for Optics and Photonics
Citation: Andrés Márquez, Andrés Márquez, Francisco J. Martínez-Guardiola, Francisco J. Martínez-Guardiola, Jorge Francés, Jorge Francés, Sergio Bleda, Sergio Bleda, Mariela L. Alvarez, Mariela L. Alvarez, Inmaculada Pascual, Inmaculada Pascual, Sergi Gallego, Sergi Gallego, Augusto Beléndez, Augusto Beléndez, } "Versatile simplified physical model for parallel aligned liquid crystal devices", Proc. SPIE 10751, Optics and Photonics for Information Processing XII, 1075106 (7 September 2018); doi: 10.1117/12.2321054;
Abstract: Liquid crystal on silicon (LCoS) displays have become the most attractive microdisplays for all sort of spatial light modulation applications. Among the different LCoS technologies, parallel aligned LCoS (PA-LCoS) are especially interesting. They offer unique capabilities as spatial light modulators (SLM), since they enable phase-only modulation without coupled amplitude modulation, and with millions of addressable pixels. In this work we evaluate and demonstrate the various capabilities offered by a novel and simplified physical model for parallel aligned liquid crystal devices (PA-LC), thus also applicable to PA-LCoS microdisplays. The model provides the voltage dependent retardance values, necessary for spatial light modulation applications, for a very wide range of incidence angles and any wavelength in the visible. First, it needs to be calibrated through a reverse-engineering approach. In this calibration, the values obtained for two of the three parameters provide the correct values for important internal properties of these devices related with the birefringence, cell gap and director profile. Therefore, the proposed model can be used as a means to inspect internal physical properties of the cell. Last but not least the model is useful to simulate the retardance for novel PA-LC devices as a function of the LC compound and cell gap. Therefore, it is not only a reverse-engineering model but it also constitutes an analytical alternative to the usual numerical approaches for PA-LC devices design and construction.
Sponsor: This work was supported by Ministerio de Economía, Industria y Competitividad (Spain) under projects FIS2017-82919-R (MINECO/AEI/FEDER, UE) and FIS2015-66570-P (MINECO/FEDER), by Generalitat Valenciana (Spain) under project PROMETEO II/2015/015 and by Universidad de Alicante under project GRE17-06.
ISBN: 978-15-106-2073-5
ISSN: 0277-786X | 1996-756X (Online)
DOI: 10.1117/12.2321054
Language: eng
Type: info:eu-repo/semantics/article
Rights: Copyright 2018 Society of Photo-Optical Instrumentation Engineers. This paper was published in Proceedings of SPIE, vol. 10751, 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
Publisher version:
Appears in Collections:INV - GHPO - Artículos de Revistas
INV - GHPO - Comunicaciones a Congresos, Conferencias, etc.

Files in This Item:
Files in This Item:
File Description SizeFormat 
ThumbnailSPIE_v10751_art1075106_2018.pdfTexto del artículo801,84 kBAdobe PDFOpen Preview

Items in RUA are protected by copyright, with all rights reserved, unless otherwise indicated.