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Sponsored Artificial Intelligence: A Modern Approach, Global Edition Artificial Intelligence: A Modern Approach, Global Edition

Author

V. Deo

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5 papers indexed here

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Aug 2026

FIRST-PL: on-sky retrieval of Humu’s (Altair) spin axis using a photonic lantern on Subaru Telescope

The FIRST-PL instrument on the Subaru Telescope enables a new observational capability: measuring stellar spin orientations for indirect constraints on exoplanet orbital geometry. We describe the instrument and demonstrate data reduction techniques to measure the spin orientation of Humu (Altair), whose apparent size i...

A. Walk, S. Vievard, O. Guyon et al. · 2 citations
Open access Aug 2026

AO for laser fusion: the challenges of controlling hundreds of high-power laser beams

Laser-driven inertial fusion requires high-energy laser drivers that are faster, more stable, and more repeatable than present landmark ignition systems. Depending on the driver concept, such systems may require hundreds to thousands of beamlines, making beam control a problem not only of stability and repeatability, b...

J. Ohland, Leon Dauerer, N. Lebas et al. · 0 citations
Open access Aug 2026

Comparing real-time optical gain measurement and methods on MagAO-X

A lingering technical challenge for pyramid wavefront sensors (PyWFS) is their change in response between calibration and correction residuals, a quantity known as optical gain (OG). Given the prevalent use of PyWFSs in current and planned high contrast adaptive optics (AO), understanding and reliably measuring OG for...

E. McEwen, J. Males, O. Guyon et al. · 1 citation
Aug 2026

Point spread function subtraction using telemetry data: one more step on the path to reaching the photon-noise limit in high-contrast imaging

Current HCI systems are limited by residual starlight, resulting from atmospheric turbulence unseen by the adaptive optics system or stemming from imperfections in the optical system itself. This leads to speckles in the PSF of the final images inhibiting our detection capabilities. Reaching the photon-noise limit in h...

S. Juillard, O. Guyon, Niyati Desai et al. · 0 citations
Open access Jul 2026

Updating the SCExAO/CHARIS polarimetric calibration following the Nasmyth beam-switcher upgrade

Subaru/SCExAO/CHARIS enables near-infrared integral field spectropolarimetry. Quantitative polarimetry is useful for a variety of science cases, particularly measurements related to dust grain properties in circumstellar disks. This capability requires correcting for polarization effects from the optical path via a Mue...

Thomas McIntosh, Man-Xuan Zhang, Briley L. Lewis et al. · 2 citations

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