Reference : Dynamic holographic interferometry with photorefractive crystals : review of applicat...
Scientific congresses and symposiums : Paper published in a book
Physical, chemical, mathematical & earth Sciences : Physics
Dynamic holographic interferometry with photorefractive crystals : review of applications and advanced techniques
Georges, Marc mailto [Université de Liège - ULiège > > CSL (Centre Spatial de Liège) >]
Thizy, Cédric mailto [Université de Liège - ULiège > > CSL (Centre Spatial de Liège) >]
Scauflaire, W. [> > > >]
Ryhon, S. [> > > >]
Pauliat, G. [> > > >]
Lemaire, Philippe [Université de Liège - ULiège > > CSL (Centre Spatial de Liège) >]
Roosen, G. [> > > >]
Speckle Metrology 2003
Gastinger, K.
Lokberg, O.
Winther, S.
Society of Photo-Optical Instrumentation Engineers
Proceedings of the Society of Photo-Optical Instrumentation Engineers, Vol. 4933
Bellingham, WA
Speckle Metrology 2003
18-20 June 2003
[en] We will present the basic properties of photorefractive crystals and show how they can be used efficiently in holographic 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
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