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Optical vortex coronagraphy with an elliptical aperture |
Applied Optics, Vol. 52, Issue 2, pp. 171-176 (2013)
http://dx.doi.org/10.1364/AO.52.000171
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Abstract
An optical vortex coronagraph that makes efficient use of a larger fraction of the clear aperture of a Cassegrain-type telescope is described. This design incorporates an elliptical subaperture rather than the conventional circular subaperture. We derive a new vortex phase mask that maintains the same theoretical contrast of a circularly symmetric vortex coronagraph.
© 2013 Optical Society of America
OCIS Codes
(070.6110) Fourier optics and signal processing : Spatial filtering
(110.6770) Imaging systems : Telescopes
(350.1260) Other areas of optics : Astronomical optics
(050.4865) Diffraction and gratings : Optical vortices
ToC Category:
Fourier Optics and Signal Processing
History
Original Manuscript: November 9, 2012
Revised Manuscript: December 7, 2012
Manuscript Accepted: December 7, 2012
Published: January 7, 2013
Citation
Garreth J. Ruane and Grover A. Swartzlander, "Optical vortex coronagraphy with an elliptical aperture," Appl. Opt. 52, 171-176 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-2-171
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