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of 275
pro vyhledávání: '"Wong, Alison"'
Autor:
Wong, Alison P., Norris, Barnaby R. M., Deo, Vincent, Tuthill, Peter G., Scalzo, Richard, Sweeney, David, Ahn, Kyohoon, Lozi, Julien, Vievard, Sebastien, Guyon, Olivier
The pyramid wavefront sensor (PyWFS) has become increasingly popular to use in adaptive optics (AO) systems due to its high sensitivity. The main drawback of the PyWFS is that it is inherently nonlinear, which means that classic linear wavefront reco
Externí odkaz:
http://arxiv.org/abs/2311.02595
Autor:
Guyon, Olivier, Norris, Barnaby, Martinod, Marc-Antoine, Ahn, Kyohoon, Deo, Vincent, Skaf, Nour, Lozi, Julien, Vievard, Sebastien, Haffert, Sebastiaan, Currie, Thayne, Males, Jared, Wong, Alison, Tuthill, Peter
Speckle Noise is the dominant source of error in high contrast imaging with adaptive optics system. We discuss the potential for wavefront sensing telemetry to calibrate speckle noise with sufficient precision and accuracy so that it can be removed i
Externí odkaz:
http://arxiv.org/abs/2208.01806
Autor:
Guyon, Olivier, Norris, Barnaby, Martinod, Marc-Antoine, Ahn, Kyohoon, Tuthill, Peter, Males, Jared, Wong, Alison, Skaf, Nour, Currie, Thayne, Miller, Kelsey, Bos, Steven P., Lozi, Julien, Deo, Vincent, Vievard, Sebastien, Belikov, Ruslan, van Gorkom, Kyle, Mazin, Benjamin, Bottom, Michael, Frazin, Richard, Rodack, Alexander, Groff, Tyler, Jovanovic, Nemanja, Martinache, Frantz
High contrast imaging (HCI) systems rely on active wavefront control (WFC) to deliver deep raw contrast in the focal plane, and on calibration techniques to further enhance contrast by identifying planet light within the residual speckle halo. Both f
Externí odkaz:
http://arxiv.org/abs/2109.13958
Autor:
Ahn, Kyohoon, Guyon, Olivier, Lozi, Julien, Vievard, Sébastien, Deo, Vincent, Skaf, Nour, Belikov, Ruslan, Bos, Steven P., Bottom, Michael, Currie, Thayne, Frazin, Richard, Gorkom, Kyle V., Groff, Tyler D., Haffert, Sebastiaan Y., Jovanovic, Nemanja, Kawahara, Hajime, Kotani, Takayuki, Males, Jared R., Martinache, Frantz, Mazin, Benjamin A., Miller, Kelsey, Norris, Barnaby, Rodack, Alexander, Wong, Alison
To directly detect exoplanets and protoplanetary disks, the development of high accuracy wavefront sensing and control (WFS&C) technologies is essential, especially for ground-based Extremely Large Telescopes (ELTs). The Subaru Coronagraphic Extreme
Externí odkaz:
http://arxiv.org/abs/2109.13353
Autor:
Wong, Alison, Pope, Benjamin, Desdoigts, Louis, Tuthill, Peter, Norris, Barnaby, Betters, Chris
The principal limitation in many areas of astronomy, especially for directly imaging exoplanets, arises from instability in the point spread function (PSF) delivered by the telescope and instrument. To understand the transfer function, it is often ne
Externí odkaz:
http://arxiv.org/abs/2107.00952
Autor:
Norris, Barnaby R. M., Wei, Jin, Betters, Christopher H., Wong, Alison, Leon-Saval, Sergio G.
Publikováno v:
Nat Commun 11, 5335 (2020)
Adaptive optics (AO) is critical in astronomy, optical communications and remote sensing to deal with the rapid blurring caused by the Earth's turbulent atmosphere. But current AO systems are limited by their wavefront sensors, which need to be in an
Externí odkaz:
http://arxiv.org/abs/2003.05158
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