Photonic beam-combiner for visible interferometry with SCExAO/FIRST: laboratory characterization and design optimization

Autor: Lallement, Manon, Huby, Elsa, Lacour, Sylvestre, Martin, Guillermo, Barjot, Kevin, Perrin, Guy, Rouan, Daniel, Lapeyrere, Vincent, Vievard, Sebastien, Guyon, Olivier, Lozi, Julien, Deo, Vincent, Kotani, Takayuki, Pham, Cecil, Cassagnettes, Cedric, Billat, Adrien, Cvetojevic, Nick, Marchis, Franck

Publikováno v: Journal of Astronomical Telescopes, Instruments, and Systems, Vol. 9, Issue 2, 025003 (April 2023)

Integrated optics are used to achieve astronomical interferometry inside robust and compact materials, improving the instrument's stability and sensitivity. In order to perform differential phase measurements at the H$\alpha$ line (656.3 nm) with the

Externí odkaz: http://arxiv.org/abs/2409.03476

Single-aperture spectro-interferometry in the visible at the Subaru telescope with FIRST: First on-sky demonstration on Keho'oea ({\alpha} Lyrae) and Hokulei ({\alpha} Aurigae)

Autor: Vievard, Sébastien, Huby, Elsa, Lacour, Sylvestre, Guyon, Olivier, Cvetojevic, Nick, Jovanovic, Nemanja, Lozi, Julien, Barjot, Kevin, Deo, Vincent, Duchêne, Gaspard, Kotani, Takayuki, Marchis, Franck, Rouan, Daniel, Martin, Guillermo, Lallement, Manon, Lapeyrere, Vincent, Martinache, Frantz, Ahn, Kyohoon, Skaf, Nour, Tamura, Motohide, Yuen, Leilehua, Lozi, Leinani, Perrin, Guy

Publikováno v: A&A 677, A84 (2023)

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 high contrast capabilities at spatial resolutions that are inaccessibl

Externí odkaz: http://arxiv.org/abs/2307.09746

First light of the FIRST visible fibered interferometer upgrade at the Subaru telescope

Autor: Barjot, Kevin

FIRSTv2 (Fibered Imager foR a Single Telescope version 2) is the upgrade of a post-AO spectro-interferometer (FIRST) that enables high contrast imaging and spectroscopy at spatial scales below the diffraction limit of a single telescope. FIRST is cur

Externí odkaz: http://arxiv.org/abs/2209.11769

A metrological characterization of the SPEED test-bed PIAACMC components

Autor: Barjot, K., Martinez, P., Beaulieu, M., Gouvret, C., Marcotto, A., Guyon, O., Belhadi, M., Caillat, A., Behaghel, T., Duigou, J. M. Le, Dohlen, K., Vigan, A.

Publikováno v: Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV, edited by Ram\'on Navarro, Roland Geyl, Proc. of SPIE Vol. 11451, 114513B, International Society for Optics and Photonics, SPIE (2020)

The segmented pupil experiment for exoplanet detection (SPEED) facility aims to improve knowledge and insight into various areas required for gearing up high-contrast imaging instruments adapted to the unprecedented high angular resolution and comple

Externí odkaz: http://arxiv.org/abs/2103.10303

FIRST, a Pupil-Remapping Fiber Interferometer at the Subaru Telescope: on-sky results

Autor: Vievard, Sébastien, Huby, Elsa, Lacour, Sylvestre, Barjot, Kevin, Martin, Guillermo, Cvetojevic, Nick, Deo, Vincent, Guyon, Olivier, Lozi, Julien, Kotani, Takayuki, Jovanovic, Nemanja, Marchis, Franck, Duchène, Guillaume, Lapeyrere, Vincent, Rouan, Daniel, Perrin, Guy

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. Integrated on the Subaru Coronagraphic Extreme Adaptive Optics instrumen

Externí odkaz: http://arxiv.org/abs/2012.12416