Zobrazeno 1 - 10
of 22 984
pro vyhledávání: '"A. Close"'
Publikováno v:
Applied Optics 63, 31 (2024)
We present an all-digital method for stabilising the phase biases in an electro-optic I/Q modulator for carrier-suppressed single-sideband modulation. Building on the method presented in S. Wald \ea, Appl. Opt. \textbf{62}, 1-7 (2023), we use the Red
Externí odkaz:
http://arxiv.org/abs/2408.16678
Resonant frequency modulation spectroscopy has been used as a highly-sensitive method for measuring the output of cold-atom interferometers. Using a detailed model that accounts for optical saturation, spatially-varying intensities and atomic densiti
Externí odkaz:
http://arxiv.org/abs/2408.06575
Machine learning techniques are an active area of research for speech enhancement for hearing aids, with one particular focus on improving the intelligibility of a noisy speech signal. Recent work has shown that feature encodings from self-supervised
Externí odkaz:
http://arxiv.org/abs/2407.13333
Autor:
Li, Jialin, Close, Laird M., Males, Jared R., Haffert, Sebastiaan Y., Weinberger, Alycia, Follette, Katherine, Wagner, Kevin, Apai, Daniel, Wu, Ya-Lin, Long, Joseph D., Perez, Laura, Pearce, Logan A., Kueny, Jay K., McEwen, Eden A., Van Gorkom, Kyle, Guyon, Olivier, Kautz, Maggie Y., Hedglen, Alexander D., Foster, Warren B., Roberts, Roz, Lumbres, Jennifer, Schatz, Lauren
The high contrast and spatial resolution requirements for directly imaging exoplanets requires effective coordination of wavefront control, coronagraphy, observation techniques, and post-processing algorithms. However, even with this suite of tools,
Externí odkaz:
http://arxiv.org/abs/2407.13756
Autor:
McEwen, Eden A., Males, Jared R., Guyon, Olivier, Haffert, Sebastiaan Y., Long, Joseph D., Close, Laird M., Van Gorkom, Kyle, Lumbres, Jennifer, Hedglen, Alexander D., Schatz, Lauren, Kautz, Maggie Y., Pearce, Logan A., Kueny, Jay K., McLeod, Avalon L., Foster, Warren B., Li, Jialin, Roberts, Roz, Weinburger, Alycia J.
The next generation of extreme adaptive optics (AO) must be calibrated exceptionally well to achieve the desired contrast for ground-based direct imaging exoplanet targets. Current wavefront sensing and control system responses deviate from lab calib
Externí odkaz:
http://arxiv.org/abs/2407.13022
Autor:
Haffert, Sebastiaan Y., Males, Jared R, Close, Laird M., Kautz, Maggie Y., Durney, Olivier, Guyon, Olivier
The Giant Magellan Adaptive Optics eXtreme (GMagAO-X) instrument is a first-light high-contrast imaging instrument for the Giant Magellan Telescope (GMT). GMagAO-X's broad wavelength range and the large 25-meter aperture of the GMT creates new challe
Externí odkaz:
http://arxiv.org/abs/2407.13021
Autor:
Kueny, Jay K., Van Gorkom, Kyle, Kautz, Maggie, Haffert, Sebastiaan, Males, Jared R., Hedglen, Alex, Close, Laird, McEwen, Eden, Li, Jialin, Long, Joseph D., Foster, Warren, Pearce, Logan, McLeod, Avalon, Lumbres, Jhen, Guyon, Olivier, Liberman, Joshua
MagAO-X is the extreme coronagraphic adaptive optics (AO) instrument for the 6.5-meter Magellan Clay telescope and is currently undergoing a comprehensive batch of upgrades. One innovation that the instrument features is a deformable mirror (DM) dedi
Externí odkaz:
http://arxiv.org/abs/2407.13019
Autor:
Males, Jared R., Close, Laird M., Haffert, Sebastiaan Y., Kautz, Maggie Y., Kelly, Doug, Fletcher, Adam, Salanski, Thomas, Durney, Olivier, Noenickx, Jamison, Ford, John, Gasho, Victor, Pearce, Logan, Kueny, Jay, Guyon, Olivier, Weinberger, Alycia, Bowler, Brendan, Kraus, Adam, Batalha, Natasha
We present the preliminary design of GMagAO-X, the first-light high-contrast imager planned for the Giant Magellan Telescope. GMagAO-X will realize the revolutionary increase in spatial resolution and sensitivity provided by the 25 m GMT. It will ena
Externí odkaz:
http://arxiv.org/abs/2407.13014
Autor:
Males, Jared R., Close, Laird M., Haffert, Sebastiaan Y., Kautz, Maggie Y., Kueny, Jay, Long, Joseph D., McEwen, Eden, Swimmer, Noah, Bailey III, John I., Foster, Warren, Mazin, Benjamin A., Pearce, Logan, Liberman, Joshua, Twitchell, Katie, Weinberger, Alycia J., Guyon, Olivier, Hedglen, Alexander D., McLeod, Avalon, Roberts, Roz, Van Gorkom, Kyle, Li, Jialin, Doty, Isabella, Gasho, Victor
MagAO-X is the coronagraphic extreme adaptive optics system for the 6.5 m Magellan Clay Telescope. We report the results of commissioning the first phase of MagAO-X. Components now available for routine observations include: the >2 kHz high-order con
Externí odkaz:
http://arxiv.org/abs/2407.13007
Autor:
Long, Joseph D., Males, Jared R., Close, Laird M., Guyon, Olivier, Haffert, Sebastiaan Y., Weinberger, Alycia J., Kueny, Jay, Van Gorkom, Kyle, McEwen, Eden, Pearce, Logan, Kautz, Maggie, Li, Jialin, Lumbres, Jennifer, Hedglen, Alexander, Schatz, Lauren, McLeod, Avalon, Doty, Isabella, Foster, Warren B., Roberts, Roswell, Twitchell, Katie
High-contrast imaging data analysis depends on removing residual starlight from the host star to reveal planets and disks. Most observers do this with principal components analysis (i.e. KLIP) using modes computed from the science images themselves.
Externí odkaz:
http://arxiv.org/abs/2407.13008