The PIAA Coronagraph Prototype: First Laboratory Results.

Details The PIAA Coronagraph Prototype: First Laboratory Results. The PIAA Coronagraph Prototype: First Laboratory Results.

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20916915p&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #169.15; Bulletin of the American Astronomical Society,

Astronomy and Astrophysics

Astronomy

Scientific paper

The phase-induced amplitude apodization (PIAA) coronagraph combines the main advantages of classical pupil apodization with high throughput ( 100%), high angular resolution ( 2λ/D) and low chromaticity. These advantages can allow direct imaging of nearby extrasolar planets with a 4-meter telescope. The PIAA coronagraph laboratory prototype has been successfully manufactured and starts to operate at the Subary Telescope facility. We present here our first laboratory results with this prototype where we have achieved 2x10-6 contrast within 2 λ/D. We also discuss the main constrains limiting the contrast and describe our future efforts.
This work was carried out under JPL contract numbers 1254445 and 1257767 for Development of Technologies for the Terrestrial Planet Finder Mission, with the support and hospitality of the National Astronomical Observatory of Japan.

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