Visible-light high-contrast imaging polarimetry at Subaru

Miles Lucas, Barnaby Norris, Olivier Guyon, Michael Bottom, Vincent Deo, Sébastien Vievard, Julien Lozi, Kyohoon Ahn, Jaren Ashcraft, Thayne Currie, David Doelman, Tomoyuki Kudo, Lucie Leboulleux, Lucinda Lilley, Maxwell Millar-Blanchaer, Boris Safonov, Peter Tuthill, Taichi Uyama, Aidan Walk, Manxuan Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

We present upgrades to the visible-light (600 nm to 800 nm) high-contrast imaging polarimeter, VAMPIRES, installed on the Subaru Coronagraphic Extreme Adaptive Optics instrument (SCExAO). These upgrades included low read noise, high dynamic range qCMOS detectors, a novel dichroic-based multiband imaging optic for spectral differential imaging, a suite of classic Lyot coronagraphs, and an achromatic fast polarization modulator. VAMPIRES is capable of diffraction-limited imaging (17 mas to 22 mas angular resolution) and achieves Strehl ratios up to ∼60% with 5σ coronagraphic contrast of 10-4 at 0.1′′ and 10-6 at >0.4′′. We highlight commissioning results from HD 169142, R Aqr, Neptune, and HD 1160B.

Original languageEnglish (US)
Title of host publicationGround-Based and Airborne Instrumentation for Astronomy X
EditorsJulia J. Bryant, Kentaro Motohara, Joel R. Vernet
PublisherSPIE
ISBN (Electronic)9781510675155
DOIs
StatePublished - 2024
EventGround-Based and Airborne Instrumentation for Astronomy X 2024 - Yokohama, Japan
Duration: Jun 16 2024Jun 21 2024

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume13096
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceGround-Based and Airborne Instrumentation for Astronomy X 2024
Country/TerritoryJapan
CityYokohama
Period6/16/246/21/24

Keywords

  • adaptive optics
  • detectors
  • high-contrast
  • imaging
  • polarimetry
  • visible-light

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Visible-light high-contrast imaging polarimetry at Subaru'. Together they form a unique fingerprint.

Cite this