Astronomical demonstration of an optical vortex coronagraph

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Title: Astronomical demonstration of an optical vortex coronagraph
Author: Swartzlander, Grover Jr.; Ford, Erin; Abdul-Malik, Rukiah; Close, Laird; Peters, Mary; Palacios, David; Wilson, Daniel
Abstract: 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 1.9(lambda)/D at our imaging camera. The secondary star suffered no suppression from the vortex lens.
Record URI: http://hdl.handle.net/1850/12540
Date: 2008-06-24

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