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Development of a CELestial Infrared Nuller Experiment (CELINE) for broadband nulling and new single-mode fiber testing
Hanot, Charles; Riaud, Pierre; Mawet, Dimitri et al.
2010In Danchi, W. C.; Delpancke, F.; Rajagopal, J. K. (Eds.) Optical and Infrared Interferometry II
 

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Abstract :
[en] he small angular distance (<100 mas) and the huge flux ratio (107) between an Earth-like exoplanet in the socalled habitable zone and its host star makes it very difficult to direct image such systems. Nulling interferometry consists of a very powerful technique that combines destructively the light from two or more collectors to dim the starlight and to reveal faint companions in its vicinity. We have developed a new nulling experiment based on the fiber nuller principle. This fully symmetric reflective nulling bench aims at testing broadband nulling in both H and K bands as well as characterizing photonic fibers for modal filtering. We present in this paper the design, the development as well as preliminary results of the experiment.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Hanot, Charles ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Riaud, Pierre
Mawet, Dimitri
Absil, Olivier  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Surdej, Jean  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Habraken, Serge  ;  Université de Liège - ULiège > Département de physique > Optique - Hololab - CSL (Centre Spatial de Liège)
Language :
English
Title :
Development of a CELestial Infrared Nuller Experiment (CELINE) for broadband nulling and new single-mode fiber testing
Publication date :
July 2010
Event name :
Astronomical Telescopes and Instrumentation 2010: Optical and Infrared Interferometry II
Event organizer :
SPIE
Event place :
San Diego, United States - California
Event date :
27/06/2010 - 2/07/2010
Audience :
International
Main work title :
Optical and Infrared Interferometry II
Editor :
Danchi, W. C.
Delpancke, F.
Rajagopal, J. K.
Publisher :
SPIE, Bellingham, United States - Washington
Collection name :
Proceedings of the SPIE, volume 7734
Pages :
2L.1-2L.9
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