Direct detection and spectroscopy of exoplanets requires high-contrast imaging. For habitable exoplanets in particular, located at a small angular separation from the host star, it is crucial to employ small inner working angle (IWA) coronagraphs that efficiently suppress starlight. These coronagraphs, in turn, require careful control of...
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December 1, 2016 (v1)Journal articleUploaded on: December 3, 2022
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February 1, 2018 (v1)Journal article
International audience
Uploaded on: December 4, 2022 -
2017 (v1)Journal article
We demonstrate for the first time an efficient, photonic-based astronomical spectrograph on the 8-m Subaru Telescope. An extreme adaptive optics system is combined with pupil apodiziation optics to efficiently inject light directly into a single-mode fiber, which feeds a compact cross-dispersed spectrograph based on array waveguide grating...
Uploaded on: December 3, 2022 -
June 22, 2014 (v1)Conference paper
The Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) instrument is one of a handful of extreme adaptive optics systems set to come online in 2014. The extreme adaptive optics correction is realized by a combination of precise wavefront sensing via a non-modulated pyramid wavefront sensor and a 2000 element deformable mirror. This system...
Uploaded on: December 3, 2022 -
September 2015 (v1)Journal article
International audience
Uploaded on: December 4, 2022