Contrast of diffuse-object holograms in PVA-acrylamide photopolymers: real-time measurements

Celia Garcia; Inmaculada V. Pascual; Antonio Fimia

doi:10.1117/12.342811

23 March 1999 Contrast of diffuse-object holograms in PVA-acrylamide photopolymers: real-time measurements

Celia Garcia, Inmaculada V. Pascual, Antonio Fimia

Proceedings Volume 3638, Holographic Materials V; (1999) https://doi.org/10.1117/12.342811
Event: Electronic Imaging '99, 1999, San Jose, CA, United States

Abstract

New holographic recording materials based on photopolymerizable systems have contributed significantly to the recent growth of holographic applications. In this paper we experimentally analyze diffuse-object holograms recorded in a photopolymerizable material. The recording and reconstruction of holograms are in real time without a chemical process and then it is possible to know the performance of these materials when diffuse-object holograms are made and, at the same time, to measure the contrast of them. The holographic images were captured in real time every 10 s and diffraction efficiency and contrast were calculated. In these experiments the influence of the intensity and the beam ratio on these holographic characteristics was analyzed. Our first results show that it is possible to obtain diffuse- object holograms with a diffraction efficiency of 8% and a contrast of 0.93.

Citation Download Citation

Celia Garcia, Inmaculada V. Pascual, and Antonio Fimia "Contrast of diffuse-object holograms in PVA-acrylamide photopolymers: real-time measurements", Proc. SPIE 3638, Holographic Materials V, (23 March 1999); https://doi.org/10.1117/12.342811

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