Photonic chip for visible interferometry: laboratory characterization and comparison with the theoretical model

Autor: Lallement, Manon, Lacour, Sylvestre, Huby, Elsa, 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: Proceeding SPIE Astronomical Telescopes + Instrumentation, Montreal, Quebec, Canada, Volume 12188, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V, 121882F (2022)

Integrated optics are used to achieve astronomical interferometry inside robust and compact materials, improving the instruments 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/2409.03808

Photonic spectro-interferometry with SCExAO/FIRST at the Subaru Telescope: towards H-alpha imaging of protoplanets

Autor: Vievard, Sébastien, Lallement, Manon, Huby, Elsa, Lacour, Sylvestre, Guyon, Olivier, Jovanovic, Nemanja, Leon-saval, Sergio, Lozi, Julien, Deo, Vincent, Ahn, Kyohoon, Cvetojevic, Nick, Barjot, Kevin, Martin, Guillermo, Kenchington-Goldsmith, Harry-Dean, Duchêne, Gaspard, Kotani, Takayuki, Marchis, Franck, Rouan, Daniel, Fitzgerald, Michael, Sallum, Steph, Norris, Barnaby, Betters, Chris, Gatkine, Pradip, Lin, John, Kim, Yoo Jung, Pham, Cécil, Cassagnettes, Cédric, Billat, Adrien, Tamura, Motohide, Perrin, Guy

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-sky data shows that bright companions can be detected down to 0.25lambd

Externí odkaz: http://arxiv.org/abs/2308.14292

Caract\'erisation et int\'egration de composants d'optique int\'egr\'ee sur l'interf\'erom\`etre fibr\'e FIRST au t\'elescope Subaru pour l'\'etude des protoplan\`etes en accr\'etion

Autor: Barjot, Kévin

Protoplanets accreting matter seem to feature a strong emission at $\text{H}\alpha$ wavelength and the contrast of the system is then weaker at these wavelengths and thus more accessible. Measuring this emission from a protoplanet allow to characteri

Externí odkaz: http://arxiv.org/abs/2306.08989

Connecting the astronomical testbed community -- the CAOTIC project: Optimized teaching methods for software version control concepts

Autor: Laginja, Iva, Robles, Pablo, Barjot, Kevin, Leboulleux, Lucie, Jensen-Clem, Rebecca, Brooks, Keira J., Moriarty, Christopher

Laboratory testbeds are an integral part of conducting research and developing technology for high-contrast imaging and extreme adaptive optics. There are a number of laboratory groups around the world that use and develop resources that are imminent

Externí odkaz: http://arxiv.org/abs/2208.02263

A new photonic integrated circuit for the FIRST instrument: towards high throughput with a compact photonic chip

Autor: Kammerer, Jens, Sallum, Stephanie, Sanchez-Bermudez, Joel, Kenchington Goldsmith, Harry-Dean, Huby, Elsa, Lallement, Manon, Barjot, Kévin, Vievard, Sebastien, Deo, Vincent, Guyon, Olivier, Martin, Guillermo, Lacour, Sylvestre

Publikováno v: Proceedings of SPIE; August 2024, Vol. 13095 Issue: 1 p130951Z-130951Z-15, 12964165p