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Conference Paper
Frontiers in Optics
Rochester, New York United States
October 14-18, 2012
ISBN: 978-1-55752-956-5
Diffraction and Coherence (FTh4E)

White-Light Optical Vortex Coronagraph

Prachyathit Kanburapa and Grover A. Swartzlander  »View Author Affiliations


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An optical vortex coronagraph with a vortex lens provides high contrast imaging over a narrow band of wavelengths. Here we report broadband experimental results by use of a vortex hologram and a dispersion-compensating grating.

© 2012 OSA

OCIS Codes
(090.2890) Holography : Holographic optical elements
(350.1260) Other areas of optics : Astronomical optics
(050.4865) Diffraction and gratings : Optical vortices

P. Kanburapa and G. A. Swartzlander, "White-Light Optical Vortex Coronagraph," in Frontiers in Optics 2012/Laser Science XXVIII, OSA Technical Digest (online) (Optical Society of America, 2012), paper FTh4E.2.

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