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Pupil-Plane Phase Apodization.pdf

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Preview of Pupil-Plane Phase Apodization

🔗 Source: home.strw.leidenuniv.nl

📊 Size: 898 KB

📄 Pages: 9 pages

⬇️ Downloads: 288

Summary

Pupil plane phase apodization coronagraphs create a dark hole in the science camera focal plane, successfully implemented as "Apodizing Phase Plates" (APPs) and "vector-APPs" using liquid-crystal patterning, delivering excellent broadband contrast (∼10−5) at small angular separations. The main goal is to enforce dark holes in the point spread function (PSF) for direct detection and characterization of faint companions. Phase-only APP coronagraphs have been applied on-sky at ground-based telescopes, offering high contrast, insensitivity to tip/tilt errors, and compatibility with cryovacuum operation. The vector-APP enables dark holes with various shapes and is efficient over spectral bandwidths of more than an octave.

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Description

Pupil plane phase apodization coronagraphs create a dark hole in the science camera focal plane, successfully implemented as "Apodizing Phase Plates" (APPs)...

Technical Information

File Format: PDF
File Size: 898 KB
Pages: 9
Language: EN
Total Downloads: 288
Last Updated: 6 days ago

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