photorefractive crystals; holographic interferometry; non destructive testing
Abstract :
[en] A compact holographic interferometer that uses a photorefractive crystal of the sillenite family as holographic recording medium is presented. It was developed to provide high accuracy displacement measurements of scattering objects, together with a high degree of flexibility, portability and versatility in function of the application. We briefly discuss the main technical aspects leading to a compact device. We present a couple of recent applications, among which the coefficient of thermal expansion of composite structures is measured, piezosheets calibration and fingerprint detection.
Disciplines :
Physics
Author, co-author :
Georges, Marc ; Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Scauflaire, Véronique
Lemaire, Philippe ; Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Language :
English
Title :
Compact photorefractive holographic camera and its applications in interferometry
Publication date :
July 2001
Event name :
Photorefractive Effects, Materials, and Devices
Event organizer :
Purdue University
Event place :
Delavan, WI, United States
Event date :
8-12 July 2001
Audience :
International
Main work title :
Photorefractive Effects, Materials, and Devices
Editor :
Nolte, D.
Salamo, G.
Siahmakoun, A.
Stepanov, S.
Publisher :
Optical Society of America, Washington DC, United States
ISBN/EAN :
1-55752-693-1
Collection name :
Trends in Optics and Photonics Series, TOPS, Vol. 62
