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6 July 2006 The Terrestrial Planet Finder Coronagraph optical surface requirements
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We derive the requirements on the surface height uniformity and reflectivity uniformity of the Terrestrial Planet Finder Coronagraph telescope and instrument optics for spatial frequencies within and beyond the spatial control bandwidth of the wave front control system. Three different wave front control systems are considered: a zero-path difference Michelson interferometer with two deformable mirrors at a pupil image; a sequential pair of deformable mirrors with one placed at a pupil image; and the Visible Nuller spatially-filtered controller. We show that the optical bandwidth limits the useful outer working angle.
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Stuart B. Shaklan, Joseph J. Green, and David M. Palacios "The Terrestrial Planet Finder Coronagraph optical surface requirements", Proc. SPIE 6265, Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter, 62651I (6 July 2006);

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