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On-sky results of focal-plane wavefront sensing and control with the asymmetric pupil vector-apodizing phase plate coronagraph

Bos, Steven P. and Miller, Kelsey L. and Lozi, Julien and Guyon, Olivier and Radhakrishnan, Vikram M. and Por, Emiel H. and Keller, Christoph U. and Doelman, David and Vievard, Sebastien and Sahoo, Ananya and Deo, Vincent and Currie, Thayne and Jovanovic, Nemanja and Martinache, Frantz and Kenworthy, Matthew A. and Snik, Frans (2020) On-sky results of focal-plane wavefront sensing and control with the asymmetric pupil vector-apodizing phase plate coronagraph. In: Adaptive Optics Systems VII. Proceedings of SPIE. No.11448. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 1144818. ISBN 9781510636835. https://resolver.caltech.edu/CaltechAUTHORS:20201216-152239580

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Abstract

We present new results with the Asymmetric Pupil vector-Apodizing Phase Plate (APvAPP), which combines coronagraphy and wavefront sensing to enable a 100% science duty cycle. We show on-sky results at SCExAO with a non-linear, model-based wavefront sensing algorithm improving the raw contrast by a factor of 2 at 2-4 lambda/D. We also report on the first on-sky demonstration of spatial Linear Dark Field Control with the APvAPP. Together, these algorithms improve the control speed, raw contrast gain and allow more modes to be corrected. Finally, we discuss the path towards coherent differential imaging with the APvAPP.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.2562294DOIPresentation
ORCID:
AuthorORCID
Lozi, Julien0000-0002-3047-1845
Guyon, Olivier0000-0002-1097-9908
Keller, Christoph U.0000-0002-1368-841X
Vievard, Sebastien0000-0003-4018-2569
Sahoo, Ananya0000-0003-2806-1254
Currie, Thayne0000-0002-7405-3119
Jovanovic, Nemanja0000-0001-5213-6207
Martinache, Frantz0000-0003-1180-4138
Kenworthy, Matthew A.0000-0002-7064-8270
Snik, Frans0000-0003-1946-7009
Additional Information:© 2020 SPIE.
Series Name:Proceedings of SPIE
Issue or Number:11448
Record Number:CaltechAUTHORS:20201216-152239580
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20201216-152239580
Official Citation:Steven P. Bos, Kelsey L. Miller, Julien Lozi, Olivier Guyon, Vikram M. Radhakrishnan, Emiel H. Por, Christoph U. Keller, David Doelman, Sebastien Vievard, Ananya Sahoo, Vincent Deo, Thayne Currie, Nemanja Jovanovic, Frantz Martinache, Matthew A. Kenworthy, and Frans Snik "On-sky results of focal-plane wavefront sensing and control with the asymmetric pupil vector-apodizing phase plate coronagraph", Proc. SPIE 11448, Adaptive Optics Systems VII, 1144818 (13 December 2020); https://doi.org/10.1117/12.2562294
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:107134
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:17 Dec 2020 01:08
Last Modified:17 Dec 2020 15:43

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