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
Full text is not posted in this repository. Consult Related URLs below.
Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20201216-152239580
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: |
| ||||||||||||||||||||||
| ORCID: |
| ||||||||||||||||||||||
| Additional Information: | © 2020 SPIE. | ||||||||||||||||||||||
| Series Name: | Proceedings of SPIE | ||||||||||||||||||||||
| Issue or Number: | 11448 | ||||||||||||||||||||||
| DOI: | 10.1117/12.2562294 | ||||||||||||||||||||||
| 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: | 16 Nov 2021 19:00 |
Repository Staff Only: item control page
