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Occulting Focal Plane Masks for Terrestrial Planet Finder Coronagraph: Design, Fabrication, Simulations and Test Results

Published online by Cambridge University Press:  02 May 2006

Kunjithapatham Balasubramanian ,
Daniel J. Hoppe ,
Peter G. Halverson ,
Daniel W. Wilson ,
Pierre M. Echternach ,
Fang Shi ,
Andrew E. Lowman ,
Albert F. Niessner ,
John T. Trauger  and
Stuart B. Shaklan
Kunjithapatham Balasubramanian
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology 4800 Oak Grove Drive, Mail Stop 301-451, Pasadena, CA 91109-8099, USA email: kbala@jpl.nasa.gov
Daniel J. Hoppe
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology 4800 Oak Grove Drive, Mail Stop 301-451, Pasadena, CA 91109-8099, USA email: kbala@jpl.nasa.gov
Peter G. Halverson
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology 4800 Oak Grove Drive, Mail Stop 301-451, Pasadena, CA 91109-8099, USA email: kbala@jpl.nasa.gov
Daniel W. Wilson
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology 4800 Oak Grove Drive, Mail Stop 301-451, Pasadena, CA 91109-8099, USA email: kbala@jpl.nasa.gov
Pierre M. Echternach
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology 4800 Oak Grove Drive, Mail Stop 301-451, Pasadena, CA 91109-8099, USA email: kbala@jpl.nasa.gov
Fang Shi
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology 4800 Oak Grove Drive, Mail Stop 301-451, Pasadena, CA 91109-8099, USA email: kbala@jpl.nasa.gov
Andrew E. Lowman
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology 4800 Oak Grove Drive, Mail Stop 301-451, Pasadena, CA 91109-8099, USA email: kbala@jpl.nasa.gov
Albert F. Niessner
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology 4800 Oak Grove Drive, Mail Stop 301-451, Pasadena, CA 91109-8099, USA email: kbala@jpl.nasa.gov
John T. Trauger
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology 4800 Oak Grove Drive, Mail Stop 301-451, Pasadena, CA 91109-8099, USA email: kbala@jpl.nasa.gov
Stuart B. Shaklan
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology 4800 Oak Grove Drive, Mail Stop 301-451, Pasadena, CA 91109-8099, USA email: kbala@jpl.nasa.gov
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Abstract

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Occulting focal plane masks for the Terrestrial Planet Finder Coronagraph (TPF-C) could be designed with continuous gray scale profile of the occulting pattern such as $1-{\rm sinc}^2$ on a suitable material or with micron-scale binary transparent and opaque structures of metallic pattern on glass. We have designed, fabricated and tested both kinds of masks. The fundamental characteristics of such masks and initial test results from the High Contrast Imaging Test bed (HCIT) at JPL are presented.

Keywords

instrumentation: high angular resolutioninstrumentation: adaptive opticsinstrumentation: miscellaneous
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 1 , Colloquium C200: Direct Imaging of Exoplanets: Science & Techniques , October 2005 , pp. 405 - 410
Copyright
© 2006 International Astronomical Union