31 August 2006 High dynamic range imaging in space: overview and wavefront control
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Abstract
NASA is endeavoring to launch missions capable of detecting Earth-like planets around neighboring stars. In visible wavelengths, this requires better than one 10 to the minus ten suppression of scattered light as close as 50 milli-arcsec to the stellar image. This extraordinary requirement is within reach but it requires broad-band wave front control to sub-Angstrom levels. We describe several high dynamic range imaging solutions, describe the various factors that contribute to the scattered light level and introduce a novel closed-loop broad-band correction system, suitable for the Shaped Pupil Coronagraph and the Lyot Coronagraph.
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Amir Give'on, Stuart B. Shaklan, Joseph J. Green, "High dynamic range imaging in space: overview and wavefront control", Proc. SPIE 6288, Current Developments in Lens Design and Optical Engineering VII, 62880A (31 August 2006); doi: 10.1117/12.682057; https://doi.org/10.1117/12.682057
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