ORBi: Thizy Cédric - Qualification of large reflectors in space environment with a holographic camera based on a BSO crystal

Reference : Qualification of large reflectors in space environment with a holographic camera based o...


	Document type :	Scientific congresses and symposiums : Paper published in a book
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Physics
	To cite this reference:	http://hdl.handle.net/2268/78003

Title :	Qualification of large reflectors in space environment with a holographic camera based on a BSO crystal
Language :	English
Author, co-author :	Thizy, Cédric [Université de Liège - ULg > > CSL (Centre Spatial de Liège) >]
	Stockman, Yvan [Université de Liège - ULg > > CSL (Centre Spatial de Liège) >]
	Lemaire, Philippe [Université de Liège - ULg > > CSL (Centre Spatial de Liège) >]
	Houbrechts, Yvette [Université de Liège - ULg > > CSL (Centre Spatial de Liège) >]
	Mazzoli, Alexandra [Université de Liège - ULg > > CSL (Centre Spatial de Liège) >]
	Georges, Marc [Université de Liège - ULg > > CSL (Centre Spatial de Liège) >]
	Mazy, Emmanuel [Université de Liège - ULg > > CSL (Centre Spatial de Liège) >]
	Tychon, Isabelle [Université de Liège - ULg > > CSL (Centre Spatial de Liège) >]
	Doyle, D. [ > > ]
	Ulbrich, G. [ > > ]
Publication date :	Jul-2005
Main document title :	Photorefractive Effects, Materials, and Devices
Editor :	Zhang, G.
	Kip, D.
	Nolte, D.
	Xu, J.
Publisher :	Optical Society of America
Collection and collection volume :	Trends in Optics and Photonics Series, TOPS, Vol. 99
Pages :	707-713
On invitation :	No
Audience :	International
ISBN :	1-55752-793-8
City :	Washington DC
Country :	USA
Event name :	Photorefractive Effects, Materials, and Devices (PR05)
Event date :	19-23 July 2005
Event organizer :	Nankai University
Event place (city) :	Sanya
Event country :	China
Keywords :	[en] photorefractive crystals ; holographic interferometry ; space reflector
Abstract :	[en] The next generation of infrared - sub mm space telescopes requires some reflectors with large dimensions and high quality. These ones, according to weight issues, are based on composite materials for which the behaviors at low temperatures are badly known. A holographic interferometry method for the verification and validation of this type of reflectors in a space environment is presented. It is based on a dynamic holographic camera observing a diffuser illuminated by the object beam coming from the reflecting surface. Photorefractive crystals being self-processing and reusable mediums, the measuring range of the holographic camera is increased with respect to other optical interferometric methods. The metrological certification of the whole system was realised by the measurement of a parabolic antenna with a 1.1 meter diameter, a known behavior and placed in a simulated space environment
Funders :	Agence spatiale européenne - ESA
Name of the research project :	Optical Ground Verification Method
Target :	Researchers ; Professionals ; Students
Permalink :	http://hdl.handle.net/2268/78003

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