Elliptical Vortex Coronagraph

Garreth J. Ruane; Grover A. Swartzlander

doi:10.1364/FIO.2012.FTh2F.4

Frontiers in Optics 2012/Laser Science XXVIII
OSA Technical Digest (online) (Optica Publishing Group, 2012),
paper FTh2F.4
•https://doi.org/10.1364/FIO.2012.FTh2F.4

Elliptical Vortex Coronagraph

Garreth J. Ruane and Grover A. Swartzlander

Frontiers in Optics 2012

Rochester, New York United States
14–18 October 2012
ISBN: 978-1-55752-956-5

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General Optical Design and Instrumentation II (FTh2F)

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G. J. Ruane and G. A. Swartzlander, "Elliptical Vortex Coronagraph," in Frontiers in Optics 2012/Laser Science XXVIII, OSA Technical Digest (online) (Optica Publishing Group, 2012), paper FTh2F.4.

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Abstract

An optical vortex coronagraph that uses an elliptical sub-aperture and a variant of a vortex lens is presented. Conventional circular sub-apertures can be replaced with elliptical sub-apertures to significantly increase the light gathering power.

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