Focal plane wavefront sensing on SUBARU/SCExAO
Abstract
Focal plane wavefront sensing is an elegant solution for wavefront sensing since near-focal images of any source taken by a detector show distortions in the presence of aberrations. Non-Common Path Aberrations and the Low Wind Effect both have the ability to limit the achievable contrast of the finest coronagraphs coupled with the best extreme adaptive optics systems. To correct for these aberrations, the Subaru Coronagraphic Extreme Adaptive Optics instrument hosts many focal plane wavefront sensors using detectors as close to the science detector as possible. We present seven of them and compare their implementation and efficiency on SCExAO. This work will be critical for wavefront sensing on next generation of extremely large telescopes that might present similar limitations.
Additional Information
© 2020 Society of Photo-Optical Instrumentation Engineers (SPIE). The development of SCExAO was supported by the Japan Society for the Promotion of Science (Grant-in-Aid for Research #23340051, #26220704, #23103002, #19H00703 & #19H00695), the Astrobiology Center of the National Institutes of Natural Sciences, Japan, the Mt Cuba Foundation and the director's contingency fund at Subaru Telescope. F. Martinache's work is supported by the ERC award CoG - 683029. S.V. would also like to thank Julien Milli for the discussions on the Low Wind Effect. The authors wish to recognize and acknowledge the very significant cultural role and reverence that the summit of Maunakea has always had within the Hawaiian community. We are most fortunate to have the opportunity to conduct observations from this mountain.Attached Files
Published - 114486D.pdf
Published - SPIE-AS20-75a34519-5006-ea11-813d-005056be4d05.pdf
Submitted - 2012.12417.pdf
Files
Additional details
- Eprint ID
- 107296
- Resolver ID
- CaltechAUTHORS:20210104-144946992
- 23340051
- Japan Society for the Promotion of Science (JSPS)
- 26220704
- Japan Society for the Promotion of Science (JSPS)
- 23103002
- Japan Society for the Promotion of Science (JSPS)
- 19H00703
- Japan Society for the Promotion of Science (JSPS)
- 19H00695
- Japan Society for the Promotion of Science (JSPS)
- National Institutes of Natural Sciences of Japan
- Mt. Cuba Astronomical Foundation
- Subaru Telescope
- 683029
- European Research Council (ERC)
- Created
-
2021-01-05Created from EPrint's datestamp field
- Updated
-
2021-11-16Created from EPrint's last_modified field
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 11448