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Issue EAS Publications Series
Volume 12, 2004
Astronomy with High Contrast Imaging II
Page(s) 311 - 316
DOI 10.1051/eas:2004045

Astronomy with High Contrast Imaging II
C. Aime and R. Soummer (eds)
EAS Publications Series, 12 (2004) 311-316
DOI: 10.1051/eas:2004045

Phase Contrast Apodisation

F. Martinache

LISE, Observatoire de Haute Provence, 04870 Saint Michel l'Observatoire, France


Abstract
A possible method of pupil apodization using Zernike's phase contrast is presented. I recall the phase contrast principle and show through numerical simulations that it may be used to generate an apodization using very simple optics in the monochromatic case. I also demonstrate that the general formalism for Lyot and Roddier & Roddier coronagraphy can be extended to the Zernike case. This may improve the quality of the simulations undertaken to demonstrate the technique's performances.



© EAS, EDP Sciences 2004


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