Spatial frequency multiplexed diffuse-object holograms of N object waves recorded in bleached silver-halide emulsions

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Título: Spatial frequency multiplexed diffuse-object holograms of N object waves recorded in bleached silver-halide emulsions
Autor/es: Fuentes Rosillo, Rosa | Pascual, Inmaculada | Beléndez, Augusto | Fimia Gil, Antonio
Grupo/s de investigación o GITE: Holografía y Procesado Óptico
Centro, Departamento o Servicio: Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía | 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
Palabras clave: Holography | Holographic recording materials | Silver halide emulsions | Multiplex holography | Bleached holograms
Área/s de conocimiento: Óptica | Física Aplicada
Fecha de creación: 1995
Fecha de publicación: 25-mar-1996
Editor: SPIE, The International Society for Optical Engineering
Cita bibliográfica: FUENTES ROSILLO, Rosa, et al. "Spatial frequency multiplexed diffuse-object holograms of N object waves recorded in bleached silver-halide emulsions". En: Practical holography X : 29-30 January 1996, San Jose, California. Bellingham, Wash. : SPIE, 1996. (Proceedings of SPIE; Vol. 2652). ISBN 978-0-81942-026-8, pp. 258-265
Resumen: In several important applications of holography such as optical information storage it is necessary to multiplex several functions or many optical components in the same thin film recording material. An optically recorded multiple grating hologram can be encoded either sequentially or simultaneously, but for the same total exposure, the diffraction efficiency of sequentially recorded holograms is lower than for a simultaneous hologram. If the number of multiplexed gratings is increased, and the angles between these gratings are reduced, the recorded object beam should resemble the field from a diffuse-object. However, in actual holograms, noise is present and it seriously limits that density. That is why maximum storage density is a function of the hologram's signal-to-noise ratio (SNR). For all of these reasons it is important to analyze the characteristics of diffuse-object holograms in the field of information storage. In this communication we present experimental results on the influence of the number of object waves and their spatial distribution on diffraction efficiency and SNR for bleached holograms recorded by using a collimated reference wave and N divergent object waves. The N object waves are interfered with the reference wave by using a simultaneous recording (coherent recording).
Patrocinador/es: Part of this work was supported by the "Direcció General d'Ensenyaments Universitaris i Investigació", Generalitat Valenciana, Spain (project GV-1165/93) and the "Comisión Interministerial de Ciencia y Tecnología", CICYT, Spain (project MAT93-0369).
URI: http://hdl.handle.net/10045/9376
ISBN: 978-0-81942-026-8
ISSN: 0277-786X
DOI: 10.1117/12.236069
Idioma: eng
Tipo: info:eu-repo/semantics/article
Derechos: Copyright 1996 Society of Photo-Optical Instrumentation Engineers. This paper was published in Proceedings of SPIE, vol. 2652, 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/10.1117/12.236069
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