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arXiv · 1807.11242

Pupil Plane Phase Apodization

Matthew A. Kenworthy·Johanan L. Codona·Frans Snik
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Abstract

Phase apodization coronagraphs are implemented in a pupil plane to create a dark hole in the science camera focal plane. They are successfully created as "Apodizing Phase Plates" (APPs) using classical optical manufacturing, and as "vector-APPs" using liquid-crystal patterning with essentially achromatic performance. This type of coronagraph currently delivers excellent broadband contrast ($\sim$10$^{-5}$) at small angular separations (few $\lambda/D$) at ground-based telescopes, owing to their insensitivity to tip/tilt errors.

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Matthew A. Kenworthy, Johanan L. Codona, Frans Snik. 2018-07-30. Pupil Plane Phase Apodization. https://doi.org/10.1142/9789811203794_0020

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