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Proceedings Paper

New pupil masks for high-contrast imaging
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Paper Abstract

Motivated by the desire to image exosolar planets, recent work by us and others has shown that high-contrast imaging can be achieved using specially shaped pupil masks. To date, our masks have been symmetric with respect to a cartesian coordinate system but were not rotationally invariant, thus requiring that one take multiple images at different angles of rotation about the central point in order to obtain high-contrast in all directions. In this talk, we present two new classes of masks that have rotational symmetry and provide high-contrast in all directions with just one image. These masks provide the required 10-10 level of contrast to within 4 λ/Δ of the central point. They are also well-suited for use on ground-based telescopes, and perhaps NGST as well, since they can accommodate central obstructions and associated support spiders.

Paper Details

Date Published: 19 November 2003
PDF: 8 pages
Proc. SPIE 5170, Techniques and Instrumentation for Detection of Exoplanets, (19 November 2003); doi: 10.1117/12.505307
Show Author Affiliations
Robert J. Vanderbei, Princeton Univ. (United States)
N. Jeremy Kasdin, Princeton Univ. (United States)
David N. Spergel, Princeton Univ. (United States)
Marc Kuchner, Harvard-Smithsonian Ctr. for Astrophysics (United States)

Published in SPIE Proceedings Vol. 5170:
Techniques and Instrumentation for Detection of Exoplanets
Daniel R. Coulter, Editor(s)

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