EAS Publications Series
Volume 14, 2005Dome C Astronomy and Astrophysics Meeting
|Page(s)||331 - 335|
|Published online||05 January 2006|
M. Giard, F. Casoli and F. Paletou (eds)
EAS Publications Series, 14 (2005) 331-335
Interferometric Nuller using the Achromatic Interfero Coronagraph
OCA, Dpt. Gemini, UMR CNRS 6203, Av. Copernic 06130 Grasse, France
2 OCA, Dpt. Gemini, UMR CNRS 6203, Le Mont-Gros, BP. 4229, 06304 Nice Cedex 04, France
3 OCA, Dpt. Cassiopee UMR 6202, Le Mont-Gros, BP. 4229, 06304 Nice Cedex 04, France
Corresponding author: firstname.lastname@example.org
Among the various recombination schemes devised for nulling interferometry, one is to use the Achromatic Interfero Coronograph (AIC) which basically is a modified Michelson-Fourier interferometer made compact by cementing together optical components. The principle of this AIC is based on the focus-crossing property, from which a wave of light experiences an achromatic π phase shift when crossing a focus. Operated up to now only on a single telescope, this device is able to accomodate several beams for nulling. We describe the use of AIC as an interferometric nuller for a two-aperture interferometer.
© EAS, EDP Sciences, 2005
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