Article (Scientific journals)
Long-wave infrared digital holographic interferometry with diffuser or point source illuminations for measuring deformations of aspheric mirrors
Vandenrijt, Jean-François; Thizy, Cédric; Queeckers, Patrick et al.
2014In Optical Engineering: the Journal of the Society of Photo-Optical Instrumentation Engineers, 53 (11), p. 112309
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Abstract :
[en] Long-wave infrared digital holographic interferometry with CO2 laser and microbolometer arrays has been developed for testing the large deformations of space reflectors. The setup considered is a Mach–Zehnder, associated to the digital holography reconstruction of the wavefront in the inline configuration with phase shifting. Two possibilities exist for illuminating the tested reflector: either with a point source (similarly to classical interferometry) or an extended source (with a diffuser). This paper presents the development of a modular setup which allows comparing both in the case of a parabolic mirror
Disciplines :
Physics
Author, co-author :
Vandenrijt, Jean-François  ;  Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Thizy, Cédric ;  Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Queeckers, Patrick
Dubois, Frank
Doyle, Dominic
Georges, Marc ;  Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Language :
English
Title :
Long-wave infrared digital holographic interferometry with diffuser or point source illuminations for measuring deformations of aspheric mirrors
Publication date :
28 April 2014
Journal title :
Optical Engineering: the Journal of the Society of Photo-Optical Instrumentation Engineers
ISSN :
0091-3286
Publisher :
International Society of Optical Engineering, Bellingham, United States - Washington
Volume :
53
Issue :
11
Pages :
112309
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
ASE - Agence Spatiale Européenne [FR]
Available on ORBi :
since 17 June 2014

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