| Issue |
EAS Publications Series
Volume 14, 2005
Dome C Astronomy and Astrophysics Meeting
|
|
|---|---|---|
| Page(s) | 331 - 335 | |
| DOI | https://doi.org/10.1051/eas:2005053 | |
| 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
1
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: name@obs-azur.fr
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