Astronomical demonstration of an optical vortex coronagraph

Using an optical vortex coronagraph and simple adaptive optics techniques, we have made the first convincing demonstration of an optical vortex coronagraph that is coupled to a star gazing telescope. We suppressed by 97% the primary star of a resolvable binary system, Cor Caroli. The stars had an an...

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Bibliographic Details
Published in:Optics express 2008-07, Vol.16 (14), p.10200-10207
Main Authors: Swartzlander, Jr, Grover A, Ford, Erin L, Abdul-Malik, Rukiah S, Close, Laird M, Peters, Mary A, Palacios, David M, Wilson, Daniel W
Format: Article
Language:English
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Summary:Using an optical vortex coronagraph and simple adaptive optics techniques, we have made the first convincing demonstration of an optical vortex coronagraph that is coupled to a star gazing telescope. We suppressed by 97% the primary star of a resolvable binary system, Cor Caroli. The stars had an angular separation of 1.9lambda/D at our imaging camera. The secondary star suffered no suppression from the vortex lens.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.16.010200