New pupil masks for high-contrast imaging

Robert J. Vanderbei; N. Jeremy Kasdin; David N. Spergel; Marc Kuchner

doi:10.1117/12.505307

19 November 2003 New pupil masks for high-contrast imaging

Robert J. Vanderbei, N. Jeremy Kasdin, David N. Spergel, Marc Kuchner

Proceedings Volume 5170, Techniques and Instrumentation for Detection of Exoplanets; (2003) https://doi.org/10.1117/12.505307
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

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.

Citation Download Citation

Robert J. Vanderbei, N. Jeremy Kasdin, David N. Spergel, and Marc Kuchner "New pupil masks for high-contrast imaging", Proc. SPIE 5170, Techniques and Instrumentation for Detection of Exoplanets, (19 November 2003); https://doi.org/10.1117/12.505307

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