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Proceedings Paper

Dynamic holographic interferometry with photorefractive crystals: review of applications and advanced techniques
Author(s): Marc P. Georges; Cedric Thizy; Veronique S. Scauflaire; Sebastien Ryhon; Gilles Pauliat; Philippe C. Lemaire; Gerald Roosen
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Paper Abstract

We will present the basic properties of photorefractive crystals and show how they can be used efficientl in holograpic interferometry experiments. We then will present some holographic systems and their numerous applications. With continuous illumination, we will show classical non destructive testing (defect detection), displacement metrology, vibration mode shape visualization, as well as a study for the use of photorefractive crystals in microgravity monitoring of fluid (FSL) experiment aboard the International Space Station). With pulsed illumination we will present the possibilities of the photorefractive crystals in vibration measurement (and will introduce the ongoing EC-funded PHIFE research project). The purpose of the paper is to unmystify photorefractive crystals and to show that they could be a good alternative to traditional speckle-based techniques for highly demanding applications. For that we will highlight the highest resolution achieved as well as the high temporal dynamics of the holographic recording.

Paper Details

Date Published: 27 May 2003
PDF: 6 pages
Proc. SPIE 4933, Speckle Metrology 2003, (27 May 2003); doi: 10.1117/12.516646
Show Author Affiliations
Marc P. Georges, Ctr. Spatial de Liege (Belgium)
Cedric Thizy, Ctr. Spatial de Liege (Belgium)
Veronique S. Scauflaire, Ctr. Spatial de Liege (Belgium)
Sebastien Ryhon, Optrion S.A. (Belgium)
Gilles Pauliat, IOTA/Univ. Paris-Sud (France)
Philippe C. Lemaire, Ctr. Spatial de Liege (Belgium)
Gerald Roosen, IOTA/Univ. Paris-Sud (France)

Published in SPIE Proceedings Vol. 4933:
Speckle Metrology 2003
Kay Gastinger; Ole Johan Lokberg; Svein Winther, Editor(s)

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