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 http://resolver.caltech.edu/CaltechAUTHORS:GUYpasp06
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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.
|Additional Information:||© 2006 Astronomical Society of the Pacific. Received 2006 January 26; accepted 2006 May 3; published 2006 June 14.|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Tony Diaz|
|Deposited On:||12 Jan 2009 20:19|
|Last Modified:||26 Dec 2012 10:36|
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