Optimal Designs, Mask Manufacture, and Experimental Results for Shaped Pupil Coronagraphs

Details Optimal Designs, Mask Manufacture, and Experimental Results for Shaped Pupil Coronagraphs Optimal Designs, Mask Manufacture, and Experimental Results for Shaped Pupil Coronagraphs

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...205.0514k&link_type=abstract

American Astronomical Society Meeting 205, #05.14; Bulletin of the American Astronomical Society, Vol. 36, p.1343

Astronomy and Astrophysics

Astronomy

1

Scientific paper

Recently, NASA has settled on a coronagraphic ``Terrestrial Planet Finder'' as its next flagship observatory. This monolithic space telescope will be equipped with a coronagraph for finding planets. As a result, the current research being done into coronagraphic concepts and wavefront control is of great importance. At Princeton, we have been studying optimal shaped pupils as a means of achieving the needed high contrast for terrestrial planet detection and characterization. In this paper, we present our most promising optimal shaped pupil designs, discuss design tradeoffs, and explore manufacturing sensitivities. We then present our recent laboratory results using shaped pupils. We present our most recent pupils manufactured via a variety of methods and show the imaged point spread functions where we have achieved between 10-6 and 10-7 contrast at better than 5 λ /D. We gratefully acknowledge the support of the Jet Propulsion Laboratory of the National Aeronautics and Space Administration for this work.

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