Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Ernesto Vargas Catalan"'
Autor:
Nemanja Jovanovic, Sam Ragland, Dimitri Mawet, Olivier Absil, Jacques Robert Delorme, Mikael Karlsson, Jonathan P. Williams, Keith Matthews, François Ménard, Michael C. Liu, Henry Ngo, Andrea M. Ghez, Aïssa Jolivet, Charlotte Z. Bond, Elsa Huby, Bin Ren, Peter Wizinowich, Pontus Forsberg, Scott Lilley, Rebecca Jensen-Clem, Eugene Serabyn, Tiffany Meshkat, Garreth Ruane, Robert J. De Rosa, Denis Defrere, Peter Gao, Ed Wetherell, Ernesto Vargas Catalan, Maxwell A. Millar-Blanchaer, Elodie Choquet, Christophe Pinte, Jason J. Wang, Gilles Orban de Xivry, Carlos Alvarez, Sylvain Cetre, Mark Chun, Ji Wang, Christoph Baranec, Marie Ygouf, Nicole Wallack, Donald N. B. Hall, Barry Zuckerman, Gaspard Duchêne, Sivan Ginzburg, Olivier Guyon
Publikováno v:
The Astronomical Journal
The Astronomical Journal, 2020, 159, ⟨10.3847/1538-3881/ab8aef⟩
The Astronomical Journal, 2020, 159, ⟨10.3847/1538-3881/ab8aef⟩
We present $L$'-band imaging of the PDS 70 planetary system with Keck/NIRC2 using the new infrared pyramid wavefront sensor. We detected both PDS 70 b and c in our images, as well as the front rim of the circumstellar disk. After subtracting off a mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd98e31f72385842f0e2a5c53a158f06
https://hal-insu.archives-ouvertes.fr/insu-03667095
https://hal-insu.archives-ouvertes.fr/insu-03667095
Autor:
Lars Österlund, Mikael Karlsson, Pierre Piron, Boris Mizaikoff, Fredrik Nikolajeff, Ernesto Vargas Catalan, Julian Haas
Publikováno v:
ACS Omega
ACS Omega, Vol 3, Iss 6, Pp 6190-6198 (2018)
ACS Omega, Vol 3, Iss 6, Pp 6190-6198 (2018)
Photonic design and optimization of thin-film polycrystalline diamond waveguides are shown, serving as advanced evanescent field transducers in the mid-infrared fingerprint regime (2000–909 cm–1; 5–11 μm). Design constraints inherent to optica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c3656042f8ad8289c2ba1d94947258c
https://doi.org/10.1021/acsomega.8b00623
https://doi.org/10.1021/acsomega.8b00623
Autor:
Mikael Karlsson, Aïssa Jolivet, Elsa Huby, Ernesto Vargas Catalan, Gilles Orban de Xivry, Jean Surdej, Pierre Piron, Olivier Absil, Serge Habraken
Publikováno v:
Journal of Astronomical Telescopes Instruments and Systems
Journal of Astronomical Telescopes Instruments and Systems, Society of Photo-optical Instrumentation Engineers, 2019, 5 (02), pp.1. ⟨10.1117/1.JATIS.5.2.025001⟩
Journal of Astronomical Telescopes Instruments and Systems, Society of Photo-optical Instrumentation Engineers, 2019, 5 (02), pp.1. ⟨10.1117/1.JATIS.5.2.025001⟩
Coronagraphy is a high-contrast imaging technique that aims to reduce the blinding glare of a star to detect a potential companion in its close environment. Vortex phase mask coronagraphy is widely recognized as one of the most promising approaches.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09cbe63ef475952a8a6100c570593e66
https://hal.archives-ouvertes.fr/hal-03145026
https://hal.archives-ouvertes.fr/hal-03145026
Autor:
Lars Österlund, Ángela I. López-Lorente, Ernesto Vargas Catalan, Fredrik Nikolajeff, Mikael Karlsson, Boris Mizaikoff, Markus Sieger, Pei Wang
Publikováno v:
physica status solidi (a). 213:2117-2123
Diamond has excellent optical properties including broadband transmissivity, low self-absorption, and a high refractive index, which have prompted its use for optical sensing applications. Thin-film diamond strip waveguides (DSWGs) combined with tuna
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8542258505c0cd31a259eca35e98c3c
https://doi.org/10.1002/pssa.201600134
https://doi.org/10.1002/pssa.201600134
Publikováno v:
Diamond and Related Materials. 63:60-68
Diamond is an excellent material for infrared optics and for applications in harsh environments. Some of those desirable properties, i.e. hardness and chemical inertness, also make it a challenging ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc9d79c9649f64a7b4e83d509871306e
https://doi.org/10.1016/j.diamond.2015.08.007
https://doi.org/10.1016/j.diamond.2015.08.007
Publikováno v:
Applied optics. 57(17)
Subwavelength gratings are gratings with periods smaller than the incident wavelength. They possess form birefringence, which depends on the grating parameters. This paper presents the results of an experimental method designed to measure the birefri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6295b77a3625e3c7e8dab9e4c33f5f2
https://pubmed.ncbi.nlm.nih.gov/30118109
https://pubmed.ncbi.nlm.nih.gov/30118109
Autor:
Maddalena Reggiani, Matthew A. Kenworthy, Julien Milli, Valentin Christiaens, Eric Pantin, Brunella Carlomagno, Keith Matthews, Eugene Serabyn, Aïssa Jolivet, Julien Girard, Dimitri Mawet, Serge Habraken, Hans-Ulrich Käufl, Denis Defrere, Ernesto Vargas Catalan, Jean Surdej, Elsa Huby, Pierre Piron, Mikael Karlsson, Markus Kasper, Olivier Absil, Philip M. Hinz, A. J. Eldorado Riggs, Carlos Gomez Gonzalez, Gilles Orban de Xivry, Christian Delacroix
Publikováno v:
Ground-based and Airborne Instrumentation for Astronomy VII.
Since its first light at the VLT in 2012, the Annular Groove Phase Mask (AGPM) has been used to implement vortex coronagraphy into AO-assisted infrared cameras at two additional world-leading observatories: the Keck Observatory and the LBT. In this p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b45b4fb7285a1b695209816106ee5ab
https://doi.org/10.1117/12.2312783
https://doi.org/10.1117/12.2312783
Autor:
Olivier Wertz, Eugene Serabyn, Dimitri Mawet, Elsa Huby, Bruno Femenia, Michael Bottom, Mikael Karlsson, Carlos A. Gomez Gonzalez, Christophe Pinte, Pontus Forsberg, Denis Defrere, Jean Surdej, Christian Delacroix, Elodie Choquet, Olivier Absil, J. Lebreton, Aïssa Jolivet, Pierre Piron, Julien Milli, Serge Habraken, Ernesto Vargas Catalan, Brunella Carlomagno, Maddalena Reggiani, Valentin Christiaens, Keith Matthews
HD 141569 A is a pre-main sequence B9.5 Ve star surrounded by a prominent and complex circumstellar disk, likely still in a transition stage from protoplanetary to debris disk phase. Here, we present a new image of the third inner disk component of H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6fb0fd255d43a2b6e167ca48f1f6e2aa
http://arxiv.org/abs/1612.03091
http://arxiv.org/abs/1612.03091
Autor:
Jean Surdej, Brunella Carlomagno, Pierre Baudoz, Elsa Huby, Serge Habraken, Pontus Forsberg, Christian Delacroix, Olivier Absil, Ernesto Vargas Catalan, Mikael Karlsson, Dimitri Mawet, Aïssa Jolivet
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2016, 595, pp.A127. ⟨10.1051/0004-6361/201628739⟩
Astronomy and Astrophysics-A&A, 2016, 595, pp.A127. ⟨10.1051/0004-6361/201628739⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2016, 595, pp.A127. ⟨10.1051/0004-6361/201628739⟩
Astronomy and Astrophysics-A&A, 2016, 595, pp.A127. ⟨10.1051/0004-6361/201628739⟩
Context. The Annular Groove Phase Mask (AGPM) is one possible implementation of the vector vortex coronagraph, where the helical phase ramp is produced by a concentric subwavelength grating. For several years, we have been manufacturing AGPMs by etch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0c2243049188c98d46a85cf8873ac12
https://resolver.caltech.edu/CaltechAUTHORS:20161222-104537389
https://resolver.caltech.edu/CaltechAUTHORS:20161222-104537389
Autor:
Dwight Chan, Elsa Huby, Michael Bottom, Olivier Wertz, Eugene Serabyn, Hien D. Tran, Keith Matthews, Henry Ngo, Maddalena Reggiani, Julia Simmons, Mikael Karlsson, Scott Lilley, Aïssa Jolivet, Denis Defrere, Randy Campbell, Brunella Carlomagno, Sylvain Cetre, Bruno Femenía Castellá, Christian Delacroix, Dimitri Mawet, Kyle Lanclos, Carlos Gomez Gonzalez, Olivier Absil, Ernesto Vargas Catalan, Peter Wizinowich, Steven Milner
Publikováno v:
Adaptive Optics Systems V.
On March 2015 an L'-band vortex coronagraph based on an Annular Groove Phase Mask made up of a diamond sub-wavelength grating was installed on NIRC2 as a demonstration project. This vortex coronagraph operates in the L' band not only in order to take
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7ba8505d34975337ca41f1e297d17ee
https://doi.org/10.1117/12.2233228
https://doi.org/10.1117/12.2233228