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Joint optimization of wavefront sensing and reconstruction with automatic differentiation
Rico Landman, Christoph Keller, Emiel H. Por +3
High-contrast imaging instruments need extreme wavefront control to directly image exoplanets. This requires highly sensitive wavefront sensors which optimally make use of the avai…
Experimental Trials With The Optical Differentiation Wavefront Sensor For Extended Objects
Meghan Farris O'Brien, Sebastiaan Y. Haffert, Joseph D. Long +4
Commonly used wavefront sensors, the Shack Hartmann wavefront sensor and the pyramid wavefront sensor, for example, have large dynamic range or high sensitivity, trading one regime…
XPipeline: Starlight subtraction at scale for MagAO-X
Joseph D. Long, Jared R. Males, Sebastiaan Y. Haffert +15
MagAO-X is an extreme adaptive optics (ExAO) instrument for the Magellan Clay 6.5-meter telescope at Las Campanas Observatory in Chile. Its high spatial and temporal resolution can…
A Novel Hexpyramid Pupil Slicer for an ExAO Parallel DM for the Giant Magellan Telescope
Maggie Kautz, Laird M. Close, Alex Hedglen +3
The 25.4m Giant Magellan Telescope (GMT) will be amongst the first in a new series of segmented extremely large telescopes (ELTs). The 25.4 m pupil is segmented into seven 8.4 m ci…
Advanced wavefront sensing and control demonstration with MagAO-X
Sebastiaan Y. Haffert, Jared R. Males, Kyle Van Gorkom +13
The search for exoplanets is pushing adaptive optics systems on ground-based telescopes to their limits. Currently, we are limited by two sources of noise: the temporal control err…
Visible extreme adaptive optics for GMagAO-X with the triple-stage AO architecture (TSAO)
Sebastiaan Y. Haffert, Jared R. Males, Laird M. Close +3
The Extremely Large Telescopes will require hundreds of actuators across the pupil for high Strehl in the visible. We envision a triple-stage AO (TSAO) system for GMT/GMagAO-X to a…