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The pupil-swapping coronagraph

Guyon, O. and Shao, M. (2006) The pupil-swapping coronagraph. Publications of the Astronomical Society of the Pacific, 118 (844). pp. 860-865. ISSN 0004-6280. doi:10.1086/505586.

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A new coronagraph that performs destructive interference between copies of the telescope pupil in which "slices" have been swapped is studied in this paper. A fourth-order "pupil-swapping coronagraph" is particularly attractive for direct imaging of extrasolar terrestrial planets: it achieves 100% throughput at 1.4 lambda/d on a square pupil (72.5% at 1.77 lambda/d on a circular pupil), is compatible with a central obstruction and spiders, l/d and delivers sharp images of off-axis sources. Direct detection of extrasolar terrestrial planets appears theoretically feasible on a 2 to 3 m visible-wavelength telescope in space.

Item Type:Article
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Guyon, O.0000-0002-1097-9908
Additional Information:© 2006 Astronomical Society of the Pacific. Received 2006 January 26; accepted 2006 May 3; published 2006 June 14.
Issue or Number:844
Record Number:CaltechAUTHORS:GUYpasp06
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:12579
Deposited By: Tony Diaz
Deposited On:12 Jan 2009 20:19
Last Modified:08 Nov 2021 22:29

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