Hanot, Charles and Riaud, Pierre and Mawet, Dimitri and Absil, Olivier and Surdej, Jean and Habraken, Serge (2010) Development of a CELestial Infrared Nuller Experiment (CELINE) for broadband nulling and new single-mode fiber testing. In: Optical and Infrared Interferometry II. Proceedings of SPIE. No.7734. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 77342L. ISBN 978-0-8194-8224-2. http://resolver.caltech.edu/CaltechAUTHORS:20150526-133834577
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Abstract
The small angular distance (<100 mas) and the huge flux ratio (10^7) 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.
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| Additional Information: | © 2010 Society of Photo-Optical Instrumentation Engineers (SPIE). July 21, 2010. The research was supported by the Fond National de la Recherche scientifique de Belgique (FNRS), by the Fonds pour la formation à la Recherche dans l’Industrie et dans l’Agriculture de Belgique (FRIA) and by the Communauté Francaise de Belgique - Action de recherche concertée - Académie Wallonie - Europe. The authors acknowledge Jacques Baudrand (LESIA) and ESA for generously lending us respectively achromatic halfwave plates and Fresnel rhombs. | |||||||||
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| Subject Keywords: | Nulling interferometry, Nulling coronagraphy, single-mode fibers, Achromatic phase shifters, Exoplanets | |||||||||
| Record Number: | CaltechAUTHORS:20150526-133834577 | |||||||||
| Persistent URL: | http://resolver.caltech.edu/CaltechAUTHORS:20150526-133834577 | |||||||||
| Official Citation: | Charles Hanot ; Pierre Riaud ; Dimitri Mawet ; Olivier Absil ; Jean Surdej, et al. "Development of a CELestial Infrared Nuller Experiment (CELINE) for broadband nulling and new single-mode fiber testing", Proc. SPIE 7734, Optical and Infrared Interferometry II, 77342L (July 21, 2010); doi:10.1117/12.856843 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 57818 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Ruth Sustaita | |||||||||
| Deposited On: | 26 May 2015 20:59 | |||||||||
| Last Modified: | 26 Mar 2019 16:57 |
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