Recent experimental results with the Four-Quadrant Phase-Mask coronograph

Details Recent experimental results with the Four-Quadrant Phase-Mask coronograph Recent experimental results with the Four-Quadrant Phase-Mask coronograph

Oct 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003esasp.539..361r&link_type=abstract

In: Proceedings of the Conference on Towards Other Earths: DARWIN/TPF and the Search for Extrasolar Terrestrial Planets, 22-25 A

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Coronographs

Scientific paper

We report a laboratory experiment to assess the performance and limitations of the Four Quadrant Phase-Mask coronagraph. A total flux rejection factor of 4400 was reached using off-the-shelf optical components. The peak intensity of the Airy pattern is respectively reduced by a factor of 44000 with a stability of a few hours. We describe prototyping of components for visible and infrared observations.

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