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Shaped Pupil Coronagraphs for Planet Finding: Optimization, Manufacturing, and Experimental Results

Published

Author(s)

Jeremy Kasdin, Ruslan Belikov, James A. Beall, Robert J. Vanderbei, Michael G. Littman, Michael Carr, Amir Give''on

Abstract

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 ?/D and 10?5 contrast at 4 ?/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.
Proceedings Title
Proc., SPIE Conference on Optical Engineering and Instrumentation
Volume
5905
Conference Dates
July 31-August 4, 2005
Conference Location
San Diego, CA, USA
Conference Title
Conference on Optical Engineering and Instrumentation

Keywords

coronagraph, MEMS, shaped pupil, terrestrial planet finder

Citation

Kasdin, J. , Belikov, R. , Beall, J. , Vanderbei, R. , Littman, M. , Carr, M. and Give''on, A. (2005), Shaped Pupil Coronagraphs for Planet Finding: Optimization, Manufacturing, and Experimental Results, Proc., SPIE Conference on Optical Engineering and Instrumentation, San Diego, CA, USA, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=32061 (Accessed June 23, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created August 3, 2005, Updated October 12, 2021