Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Johanan L. Codona"'
Autor:
Jared R. Males, Joseph Long, Lauren Schatz, Johanan L. Codona, Michael Hart, Thierry Fusco, Pierre Janin-Potiron, Robert Johnson, Olivier Fauvarque, Jean-François Sauvage, Vincent Chambouleyron, Carlos Correia, Benoit Neichel, Mala Mateen
Publikováno v:
Journal of Astronomical Telescopes Instruments and Systems
Journal of Astronomical Telescopes Instruments and Systems, Society of Photo-optical Instrumentation Engineers, 2021, 7 (04), pp.049001. ⟨10.1117/1.JATIS.7.4.049001⟩
Journal of Astronomical Telescopes Instruments and Systems, 2021, 7 (04), pp.049001. ⟨10.1117/1.JATIS.7.4.049001⟩
Journal Of Astronomical Telescopes Instruments And Systems (2329-4124) (SPIE-Intl Soc Optical Eng), 2021-10, Vol. 7, N. 4, P. 049001
Journal of Astronomical Telescopes Instruments and Systems, Society of Photo-optical Instrumentation Engineers, 2021, 7 (04), pp.049001. ⟨10.1117/1.JATIS.7.4.049001⟩
Journal of Astronomical Telescopes Instruments and Systems, 2021, 7 (04), pp.049001. ⟨10.1117/1.JATIS.7.4.049001⟩
Journal Of Astronomical Telescopes Instruments And Systems (2329-4124) (SPIE-Intl Soc Optical Eng), 2021-10, Vol. 7, N. 4, P. 049001
International audience; The Giant Segmented Mirror Telescopes (GSMTs) including the Giant Magellan Telescope (GMT), the Thirty Meter Telescope (TMT), and the European Extremely Large Telescope (E-ELT), all have extreme adaptive optics (ExAO) instrume
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19256550af8474b6b081c68d8cbac4e0
https://hal.archives-ouvertes.fr/hal-03512484
https://hal.archives-ouvertes.fr/hal-03512484
Autor:
Michael Oliker, Colton Bigler, Michael Hart, Johanan L. Codona, Mala Mateen, Terry Brennan, Robert Johnson
Publikováno v:
Adaptive Optics Systems VII.
We report on a test bed to compare the performance of three different wavefront sensors, the Shack-Hartmann Wavefront Sensor (SHWFS), the Pyramid Wavefront Sensor (PWFS), and the non-linear Curvature Wavefront Sensor (nlCWFS). No single wavefront sen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fad595e9fe7889aa60120111242f3019
https://doi.org/10.1117/12.2576384
https://doi.org/10.1117/12.2576384
Autor:
Jennifer Lumbres, Johanan L. Codona, Pierre Janin-Poitron, Benoit Neichel, Vincent Chambouleyron, Thierry Fusco, Weslin Pullen, Carlos Correia, Olivier Favarque, Kyle Van Gorkom, Jared R. Males, Lauren Schatz, Mala Mateen, Joseph Long, Chris Bohlman, Michael Hart
Publikováno v:
Adaptive Optics Systems VII.
Within the next decade the Extremely Large Telescopes [ELTs] with diameters up to 40m will see first light. To optimize a high contrast pyramid wavefront sensor for an ELT extreme adaptive optics system, we are developing the theoretical framework of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b15c8162dcc5140940562a34325febf3
https://doi.org/10.1117/12.2562673
https://doi.org/10.1117/12.2562673
Publikováno v:
Vision Research. 117:67-80
The pointing direction of cone photoreceptors can be inferred from the Stiles-Crawford Effect of the First Kind (SCE-I) measurement. Healthy retinas have tightly packed cones with a SCE-I function peak either centered in the pupil or with a slight na
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ee032474f9ec7d36480b852bea2770b
https://doi.org/10.1016/j.visres.2015.10.008
https://doi.org/10.1016/j.visres.2015.10.008
Publikováno v:
Adaptive Optics Systems VI.
The Nonlinear Curvature Wavefront Sensor (nlCWFS), first proposed by Guyon, determines wavefront shape from images of a reference beacon in a number of planes between the pupil and focal plane of a telescope. We describe a new algorithm that rapidly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::487a0c4e1edb5a74ab4a5739bc4fb7a3
https://doi.org/10.1117/12.2313760
https://doi.org/10.1117/12.2313760
Autor:
Markus Kasper, Frans Snik, Gilles Otten, Matthew A. Kenworthy, Tiffany Meshkat, Johanan L. Codona, Julien Girard, Sascha P. Quanz, Michael Meyer
Publikováno v:
IAU Symposium, 8 (299)
Exploring the formation and evolution of planetary systems : proceedings of the 299th Symposium of the International Astronomical Union held in Victoria, Canada, June 2-7, 2013
Exploring the formation and evolution of planetary systems : proceedings of the 299th Symposium of the International Astronomical Union held in Victoria, Canada, June 2-7, 2013
IAU Symposium, 8 (299)
ISSN:0074-1809
ISSN:1743-9213
Exploring the formation and evolution of planetary systems : proceedings of the 299th Symposium of the International Astronomical Union held in Victoria, Canada, June 2 - 7, 2013
ISSN:0074-1809
ISSN:1743-9213
Exploring the formation and evolution of planetary systems : proceedings of the 299th Symposium of the International Astronomical Union held in Victoria, Canada, June 2 - 7, 2013
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8187f3442b2d640d3e874aab0bdd0cf0
http://doc.rero.ch/record/300982/files/S1743921313007771.pdf
http://doc.rero.ch/record/300982/files/S1743921313007771.pdf
Autor:
Gilles Otten, Leandra Brickson, Matthew A. Kenworthy, Michael J. Escuti, Kathryn J. Hornburg, Frans Snik, Katie M. Morzinski, Christoph U. Keller, Johanan L. Codona, Philip M. Hinz, Laird M. Close, Jared R. Males
Publikováno v:
The Astrophysical Journal
The Astrophysical Journal, 834, 175
The Astrophysical Journal, 834, 175
We report on the performance of a vector apodizing phase plate coronagraph that operates over a wavelength range of $2-5 \mu$m and is installed in MagAO/Clio2 at the 6.5 m Magellan Clay telescope at Las Campanas Observatory, Chile. The coronagraph ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::760173c37e9d730fa6630edf35399588
http://arxiv.org/abs/1702.04193
http://arxiv.org/abs/1702.04193
Publikováno v:
Proceedings of the Adaptive Optics for Extremely Large Telescopes 5.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c6ce8814474ec335633cbb809a7b7a4
https://doi.org/10.26698/ao4elt5.0146
https://doi.org/10.26698/ao4elt5.0146
Autor:
Johanan L. Codona, Maria Bergomi, Enrico Pinna, Alfio Puglisi, Christophe Verinaud, Fernando Pedichini, Andrea Baruffolo, Roberto Ragazzoni, Philip M. Hinz, Wolfgang Gaessler, Valentina Viotto, Bernardo Salasnich, Daniela Fantinel, Davide Greggio, Carlo Baffa, Luca Carbonaro, G. Farisato, Alexis Carlotti, Simone Esposito, Demetrio Magrin, Jacopo Farinato, Marco Dima, Franco Lisi, Marco Stangalini, Emanuele Giallongo, Luca Marafatto, Mauro Centrone
Publikováno v:
International Journal of Astrobiology. 14:365-373
SHARK is a proposal aimed at investigating the technical feasibility and the scientific capabilities of high-contrast cameras to be implemented at the Large Binocular Telescope (LBT). SHARK foresees two separated channels: near-infrared (NIR) channel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b97b1ef6db7144a8a3938d2c85003c0
https://doi.org/10.1017/s1473550414000494
https://doi.org/10.1017/s1473550414000494
Publikováno v:
SPIE Proceedings.
The differential Optical Transfer Function (dOTF) is a focal plane wavefront sensing method that uses a diversity in the pupil plane to generate two different focal plane images. The difference of their Fourier transforms recovers the complex amplitu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f34a21714e34df1c2a7859263ff48de7
https://doi.org/10.1117/12.2232722
https://doi.org/10.1117/12.2232722