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Phase Contrast methods and their Application to Coronagraphy

Published online by Cambridge University Press:  28 May 2003

Claude Aime ,
Rémi Soummer  and
L. Abe
L. Abe*
Affiliation:
UMR 6525, Parc Valrose, Université de Nice Sophia-Antipolis, 06108 Nice Cedex, France
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Abstract

This paper is describing the fundamental notions of phase contrastmethod introduced by F. Zernike (Zernike 1934) and how it can beapplied to coronagraphy. These techniques were first designed foroptical surface testing and therefore their use as coronagraphicinstrument is not straightforward. This paper is mainly describingthe Foucault knife edge test, its later improvement by Zernike andBurch and their effects as coronagraphic concepts. A formaldemonstration is given in the case of the Phase Knife Coronagraph.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 8: Astronomy with High Contrast Imaging , 2003 , pp. 107 - 115
Copyright
© EAS, EDP Sciences, 2003

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