Mr. Joost Wardenier Profile

Joost Wardenier

at Univ of Oxford

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Author

Publications (3)

Proceedings Article | 18 September 2024 Poster + Paper

On-sky tests of an upgraded holographic mask in the OSIRIS imager

Eric Exley, Steph Sallum, Peyton Benac, David Doelman, Michael Fitzgerald, Michael Liu, Jim Lyke, Frans Snik, Peter Tuthill, Joost Wardenier, Peter Wizinowich

Proceedings Volume 13095, 130952U (2024) https://doi.org/10.1117/12.3029442

KEYWORDS: Visibility, Stars, Point spread functions, Interferograms, Calibration, Imaging systems, Image quality, Liquid crystals, Holography, Data modeling

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Proceedings Article | 5 August 2021 Presentation

Multiple-wave lateral shearing interferometry with a liquid-crystal geometric phase grating

Emiel Por, Matthew Kenworthy, Sebastiaan Haffert, Frans Snik, Yolanda Frensch, Joost Wardenier, Mantas Zilinskas

Proceedings Volume 11820, 118200J (2021) https://doi.org/10.1117/12.2595002

KEYWORDS: Liquid crystals, Interferometry, Diffraction gratings, Spatial filters, Shearing interferometers, Polarization, Diffraction, Wavefronts, Wavefront sensors, Telescopes

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Proceedings Article | 18 July 2018 Paper

On-sky results of the Leiden EXoplanet Instrument (LEXI)

S. Haffert, M. Wilby, C. Keller, I. A. Snellen, D. Doelman, E. Por, M. van Kooten, S. Bos, J. Wardenier

Proceedings Volume 10703, 1070323 (2018) https://doi.org/10.1117/12.2314199

KEYWORDS: Wavefront sensors, Adaptive optics, Spectrographs, Exoplanets, Coronagraphy

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