The Broadband Holographic Vortex Coronagraph and its Applications

Garreth J. Ruane; Grover A. Swartzlander

doi:10.1364/FIO.2013.FW4F.7

Frontiers in Optics 2013
OSA Technical Digest (online) (Optica Publishing Group, 2013),
paper FW4F.7
•https://doi.org/10.1364/FIO.2013.FW4F.7

The Broadband Holographic Vortex Coronagraph and its Applications

Garreth J. Ruane and Grover A. Swartzlander

Frontiers in Optics 2013

Orlando, Florida United States
6–10 October 2013
ISBN: 978-1-55752-987-9

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Unconventional Polarization and Complex Optical Fields III (FW4F)

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G. J. Ruane and G. A. Swartzlander, "The Broadband Holographic Vortex Coronagraph and its Applications," in Frontiers in Optics 2013, I. Kang, D. Reitze, N. Alic, and D. Hagan, eds., OSA Technical Digest (online) (Optica Publishing Group, 2013), paper FW4F.7.

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Abstract

We demonstrate a broadband holographic vortex coronagraph for high-contrast imaging over large visible passbands (Δλ/λ = 40%). A scheme to measure the spatial extent of an extremely unresolved on-axis broadband source distribution is verified.

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