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Proceedings Paper

Fully optimized shaped pupils: preparation for a test at the Subaru Telescope
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Paper Abstract

The SCExAO instrument at the Subaru telescope, mainly based on a PIAA coronagraph can benefit from the addition of a robust and simple shaped pupil coronagraph. New shaped pupils, fully optimized in 2 dimensions, make it possible to design optimal apodizers for arbitrarily complex apertures, for instance on-axis telescopes such as the Subaru telescope. We have designed several masks with inner working angles as small as 2.5 λ / D, and for high-contrast regions with different shapes. Using Princeton University nanofabrication facilities, we have manufactured two masks by photolithography. These masks have been tested in the laboratory, both in Princeton and in the facilities of the National Astronomical Observatory of Japan (NAOJ) in Hilo. The goal of this work is to prepare tests on the sky of a shaped pupil coronagraph in 2012.

Paper Details

Date Published: 24 September 2012
PDF: 11 pages
Proc. SPIE 8446, Ground-based and Airborne Instrumentation for Astronomy IV, 84463C (24 September 2012); doi: 10.1117/12.927129
Show Author Affiliations
Alexis Carlotti, Princeton Univ. (United States)
N. Jeremy Kasdin, Princeton Univ. (United States)
Frantz Martinache, Subaru Telescope, National Astronomical Observatory of Japan (United States)
Robert J. Vanderbei, Princeton Univ. (United States)
Elizabeth J Young, Princeton Univ. (United States)
George Che, Princeton Univ. (United States)
Tyler D. Groff, Princeton Univ. (United States)
Olivier Guyon, Subaru Telescope, National Astronomical Observatory of Japan (United States)


Published in SPIE Proceedings Vol. 8446:
Ground-based and Airborne Instrumentation for Astronomy IV
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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