Physics
Scientific paper
Aug 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005spie.5905..128k&link_type=abstract
Techniques and Instrumentation for Detection of Exoplanets II. Edited by Coulter, Daniel R. Proceedings of the SPIE, Volume 590
Physics
6
Scientific paper
Current plans call for the first Terrestrial Planet Finder mission, TPF-C, to be a monolithic space telescope with a coronagraph for achieving high contrast. Our group at Princeton pioneered the concept of shaped pupils for high contrast imaging and planet detection. In previous papers we introduced a number of families of optimal shaped pupils in square, circular, and elliptical apertures. Here, we show our most promising designs and present our laboratory results for the elliptical shaped pupil. We are currently achieving better than 10-7 contrast at 10 λ/D and 10-5 contrast at 4 λ/D, without wavefront control. We describe the deep ion etching manufacturing process to make free standing masks. We also discuss what is limiting contrast in the laboratory and our progress in wavefront correction.
Beall James
Belikov Ruslan
Carr Michael
Give'on Amir A.
Kasdin Jeremy N.
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