Optical systems engineering for a terrestrial planet finder coronagraph

Details Optical systems engineering for a terrestrial planet finder coronagraph Optical systems engineering for a terrestrial planet finder coronagraph

Feb 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003spie.4860...72n&link_type=abstract

High-Contrast Imaging for Exo-Planet Detection. Edited by Alfred B. Schultz. Proceedings of the SPIE, Volume 4860, pp. 72-83 (2

Computer Science

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Scientific paper

Optical coronagraphy is a promising possibility for finding and characterizing Earth-like planets that orbit nearby stars. This approach begins with a large unobscured conventional telescope, but significant modifications are needed to achieve adequate suppression of the glare of the star. Three techniques are under consideration for suppression of the aperture diffraction which redirects starlight into the planet's pixel; once this is satisfied, extraordinary precision and stability in the wavefront are needed as well to suppress scatter of the starlight into that pixel. We discuss the central choices in the setting of error budgets, a summary of key allocations in that budget, optical model results that demonstrate the operation and performance of the system, and key hardware requirements.

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