Low-cost liquid crystal display optimized as a monopixel coherent modulator
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Título: | Low-cost liquid crystal display optimized as a monopixel coherent modulator |
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Autor/es: | Márquez, Andrés | Alvarez, Mariela L. | Puerta, Luis A. | Estévez, Rocío | Fernandez-Varo, Helena | Beléndez, Augusto | Pascual, Inmaculada |
Grupo/s de investigación o GITE: | Holografía y Procesado Óptico |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal | Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía |
Palabras clave: | Liquid crystal displays | Spatial light modulators | Electrooptics | Transmissive LCD | Reflective LCV |
Área/s de conocimiento: | Óptica | Física Aplicada |
Fecha de creación: | 2007 |
Fecha de publicación: | 9-may-2007 |
Editor: | SPIE, The International Society for Optical Engineering |
Cita bibliográfica: | MÁRQUEZ RUIZ, Andrés, et al. "Low-cost liquid crystal display optimized as a monopixel coherent modulator". En: Liquid crystals and applications in optics : 17-18 April 2007, Prague, Czech Republic / edited by Milada Glogarova, Peter Palffy- Muhoray, Martin Copic. Bellingham, Wash. : SPIE, 2007. (Proceedings of SPIE; Vol. 6587). ISBN 978-0-81946-715-7, pp. 658716-1/12 |
Resumen: | We propose the use of low cost alphanumeric liquid crystal displays (LCD) not only as an educational tool, to introduce students the insights of the electrooptic performance of liquid crystals, but also as a device able to be used in research to validate models describing the performance of LCDs and to be used in applications requiring monopixel optical modulation. High resolution LCDs have usually focused the research attention because of their capabilities to be used as SLMs. However low cost LCDs with a low number of pixels and directly addressed, such as segmented alphanumeric displays, may also be appealing devices. We show the characterization of one of the segments. The model applied had previously been demonstrated with high resolution LCDs, which are thin LCDs. The segmented LCD is found to be a thick LCD, thus, allowing us to verify the validity of the model in another range of conditions. Furthermore, we show that low cost alphanumeric LCDs can be used as monopixel LCDs. This is interesting since there are a number of applications, as in polarimetry or in interferometry, where monopixel LCDs may proof necessary. We optimize the modulation of the LCD both in the transmissive and in the reflective geometry to obtain amplitude-only and phase-only modulations which are useful for a number of applications. |
Patrocinador/es: | This work was supported by the Spanish Ministerio de Educación y Ciencia (grants FIS2005-05881-C02-01 and FIS2005-05881-C02-02), and from Generalitat Valenciana (grant GV06-007). |
URI: | http://hdl.handle.net/10045/9409 |
ISBN: | 978-0-81946-715-7 |
ISSN: | 0277-786X |
DOI: | 10.1117/12.722648 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | Copyright 2007 Society of Photo-Optical Instrumentation Engineers. This paper was published in Proceedings of SPIE, Vol. 6587, 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. |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1117/12.722648 |
Aparece en las colecciones: | INV - GHPO - Artículos de Revistas |
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