417 citations · 2.3k across the 72 of their papers we have counts for
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Photonic chip for visible interferometry: laboratory characterization and comparison with the theoretical model
Manon Lallement, Sylvestre Lacour, Elsa Huby +15
Integrated optics are used to achieve astronomical interferometry inside robust and compact materials, improving the instruments stability and sensitivity. In order to perform diff…
Photonic beam-combiner for visible interferometry with SCExAO/FIRST: laboratory characterization and design optimization
Manon Lallement, Elsa Huby, Sylvestre Lacour +15
Integrated optics are used to achieve astronomical interferometry inside robust and compact materials, improving the instrument's stability and sensitivity. In order to perform dif…
The development of HISPEC for Keck and MODHIS for TMT: science cases and predicted sensitivities
Quinn M. Konopacky, Ashley D. Baker, Dimitri Mawet +72
HISPEC is a new, high-resolution near-infrared spectrograph being designed for the W.M. Keck II telescope. By offering single-shot, R=100,000 between 0.98 - 2.5 um, HISPEC will ena…
Photonic spectro-interferometry with SCExAO/FIRST at the Subaru Telescope: towards H-alpha imaging of protoplanets
Sébastien Vievard, Manon Lallement, Elsa Huby +27
FIRST is a post Extreme Adaptive-Optics (ExAO) spectro-interferometer operating in the Visible (600-800 nm, R~400). Its exquisite angular resolution (a sensitivity analysis of on-s…
Single-aperture spectro-interferometry in the visible at the Subaru telescope with FIRST: First on-sky demonstration on Keho'oea (α Lyrae) and Hokulei (α Aurigae)
Sébastien Vievard, Elsa Huby, Sylvestre Lacour +20
FIRST is a spectro-interferometer combining, in the visible, the techniques of aperture masking and spatial filtering thanks to single-mode fibers. This instrument aims to deliver…
JASMINE: Near-Infrared Astrometry and Time Series Photometry Science
Daisuke Kawata, Hajime Kawahara, Naoteru Gouda +86
Japan Astrometry Satellite Mission for INfrared Exploration (JASMINE) is a planned M-class science space mission by the Institute of Space and Astronautical Science, the Japan Aero…
Coronagraph Experiment on Dark-hole Control by Speckle Area Nulling Method
Masahito Oya, Jun Nishikawa, Masaaki Horie +7
In high-contrast imaging optical systems for direct observation of planets outside our solar system, adaptive optics with an accuracy of lambda/10,000 root mean square is required…
SCExAO, a testbed for developing high-contrast imaging technologies for ELTs
Kyohoon Ahn, Olivier Guyon, Julien Lozi +21
To directly detect exoplanets and protoplanetary disks, the development of high accuracy wavefront sensing and control (WFS&C) technologies is essential, especially for ground-base…
Building hybridized 28-baseline pupil-remapping photonic interferometers for future high resolution imaging
Nick Cvetojevic, Barnaby R. M. Norris, Simon Gross +7
One key advantage of single-mode photonic technologies for interferometric use is their ability to easily scale to an ever increasing number of inputs without a major increase in t…
FIRST, a Pupil-Remapping Fiber Interferometer at the Subaru Telescope: on-sky results
Sébastien Vievard, Elsa Huby, Sylvestre Lacour +13
FIRST, the Fibered Imager foR a Single Telescope, is a spectro-imager using single-mode fibers for pupil remapping, allowing measurements beyond the telescope diffraction limit. In…
Capabilities of a fibered imager on an extremely large telescope
Sebastien Vievard, Nick Cvetojevic, Elsa Huby +11
FIRST, the Fibered Imager foR a Single Telescope instrument, is an ultra-high angular resolution spectro-imager, able to deliver calibrated images and measurements beyond the teles…
High-resolution Infrared Spectrograph for Exoplanet Characterization with the Keck and Thirty Meter Telescopes
Dimitri Mawet, Michael Fitzgerald, Quinn Konopacky +46
HISPEC (High-resolution Infrared Spectrograph for Exoplanet Characterization) is a proposed diffraction-limited spectrograph for the W.M. Keck Observatory, and a pathfinder for the…
SCExAO, an instrument with a dual purpose: perform cutting-edge science and develop new technologies
Julien Lozi, Olivier Guyon, Nemanja Jovanovic +31
The Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) instrument is an extremely modular high-contrast instrument installed on the Subaru telescope in Hawaii. SCExAO has a dual…
Fiber mode scrambler for the Subaru infrared Doppler instrument (IRD)
Masato Ishizuka, Takayuki Kotani, Jun Nishikawa +4
We report the results of fiber mode scrambler experiments for the Infra-Red Doppler instrument (IRD) on the Subaru 8.2-m telescope. IRD is a fiber-fed, high precision radial veloci…
Pioneering high contrast science instruments for planet characterization on giant segmented mirror telescopes
N. Jovanovic, O. Guyon, J. Lozi +36
A suite of science instruments is critical to any high contrast imaging facility, as it defines the science capabilities and observing modes available. SCExAO uses a modular approa…
Developing post-coronagraphic, high-resolution spectroscopy for terrestrial planet characterization on ELTs
N. Jovanovic, O. Guyon, T. Kotani +12
Spectroscopic observations are extremely important for determining the composition, structure, and surface gravity of exoplanetary atmospheres. High resolution spectroscopy of the…
On-sky closed loop correction of atmospheric dispersion for high-contrast coronagraphy and astrometry
Prashant Pathak, Olivier Guyon, Nemanja Jovanovic +6
Adaptive optic (AO) systems delivering high levels of wavefront correction are now common at observatories. One of the main limitations to image quality after wavefront correction…
Laboratory demonstration of a cryogenic deformable mirror for wavefront correction of space-borne infrared telescopes
Aoi Takahashi, Keigo Enya, Kanae Haze +9
This paper demonstrates a cryogenic deformable mirror (DM) with 1,020 actuators based on micro-electrical mechanical systems (MEMS) technology. Cryogenic space-borne infrared teles…
Organized Autotelescopes for Serendipitous Event Survey (OASES): design and performance
Ko Arimatsu, Kohji Tsumura, Kohei Ichikawa +7
Organized Autotelescopes for Serendipitous Event Survey (OASES) is an optical observation project that aims to detect and investigate stellar occultation events by kilometer-sized…
Application of Multicore Optical Fibers in Astronomy
Nemanja Jovanovic, Olivier Guyon, Hajime Kawahara +1
Multicore fibers are gaining growing attention in astronomy. The two main attributes which make them attractive for astronomy are that they reduce the distance between cores and he…
Experimental demonstration of binary shaped pupil mask coronagraphs for telescopes with obscured pupils
Kanae Haze, Keigo Enya, Lyu Abe +3
We present the fabrication and experimental demonstration of three free-standing binary shaped pupil mask coronagraphs, which are applicable for telescopes with partially obscured…
Coronagraphic demonstration experiment using aluminum mirrors for space infrared astronomical observations
Shinji Oseki, Shinki Oyabu, Daisuke Ishihara +7
For future space infrared astronomical coronagraphy, we perform experimental studies on the application of aluminum mirrors to a coronagraph. Cooled reflective optics is required f…
The Subaru Coronagraphic Extreme Adaptive Optics system: enabling high-contrast imaging on solar-system scales
N. Jovanovic, F. Martinache, O. Guyon +35
The Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) instrument is a multipurpose high-contrast imaging platform designed for the discovery and detailed characterization of ex…
FIRST, a fibered aperture masking instrument II. Spectroscopy of the Capella binary system at the diffraction limit
E. Huby, G. Duchêne, F. Marchis +7
FIRST is a prototype instrument built to demonstrate the capabilities of the pupil remapping technique, using single-mode fibers and working at visible wavelengths. We report on ob…