Astronomical demonstration of an optical vortex coronagraph | Zendy

Grover A. Swartzlander | Zendy; Erin L. Ford | Zendy; Rukiah S. Abdul-Malik | Zendy; Laird M. Close | Zendy; Mary Anne Peters | Zendy; David M. Palacios | Zendy; Daniel W. Wilson | Zendy

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Astronomical demonstration of an optical vortex coronagraph

Author(s) -

Grover A. Swartzlander,

Erin L. Ford,

Rukiah S. Abdul-Malik,

Laird M. Close,

Mary Anne Peters,

David M. Palacios,

Daniel W. Wilson

Publication year - 2008

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.16.010200

Subject(s) - coronagraph , physics , optics , optical vortex , vortex , telescope , optical telescope , adaptive optics , astronomy , stars , exoplanet , beam (structure) , thermodynamics

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.

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