Reference : Digital holographic interferometry with CO2 lasers and diffuse illumination applied to l...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/131136
Digital holographic interferometry with CO2 lasers and diffuse illumination applied to large space reflectors metrology
English
Georges, Marc mailto [Université de Liège - ULg > > CSL (Centre Spatial de Liège) >]
Vandenrijt, Jean-François mailto [Université de Liège - ULg > > CSL (Centre Spatial de Liège) >]
Thizy, Cédric mailto [Université de Liège - ULg > > CSL (Centre Spatial de Liège) >]
Stockman, Yvan mailto [Université de Liège - ULg > > CSL (Centre Spatial de Liège) >]
Queeckers, Patrick [Université Libre de Bruxelles - ULB > Microgravity Research Centre > > >]
Dubois, Frank [Université Libre de Bruxelles - ULB > Microgravity Research Centre > > >]
Doyle, Dominic [European Space Agency > ESTEC > > >]
1-Jan-2013
Applied Optics
Optical Society of America
52
1
Digital Holography and 3D Imaging
A102-A116
Yes (verified by ORBi)
International
0003-6935
1539-4522
Washington
DC
[en] Digital holography ; Holography ; Interferometry ; infrared ; thermal imager
[en] Digital holographic interferometry in the long wave infrared domain has been developed by combining a CO2 laser and a microbolometer array. The long wavelength allows large deformation measurements which are of interest in the case of large space reflectors undergoing thermal changes when in orbit. We review holography at such wavelengths and present some specific aspects related to this spectral range on our measurements. For the design of our digital holographic interferometer we studied the possibility of illuminating specular objects by a reflective diffuser. We discuss the development of the interferometer and the results obtained on a representative space reflector, first in the laboratory and then during vacuum cryogenic test.
Agence spatiale européenne - ESA
Researchers ; Professionals
http://hdl.handle.net/2268/131136
First author invited by Optical Society of America to propose a paper in special issue of Applied Optics on "Digital Holography and 3D Imaging"

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