70 citations · 275 across the 23 of their papers we have counts for
11 papers · 1 filter
Astrometric detection of rocky exoplanets from inexpensive space platforms
Peter G. Tuthill, George Ayad, Donald G. Dansereau +18
The detection of orbiting exoplanets by way of astrometric monitoring of the host star to reveal gravitationally induced reflex motion requires extreme precision and measurement st…
The final design of GMagAO-X: the wavefront sensing and control (WFS&C) architecture of GMagAO-X
Sebastiaan Y. Haffert, Jared R. Males, Laird M. Close +10
The Giant Magellan Adaptive Optics eXtreme (GMagAO-X) instrument has now been selected as an official part of the Giant Magellan Telescope's (GMT) instrument suite. The instrument…
Quantum-optimal instruments for high-contrast imaging with multi-plane light converters
Sebastiaan Y. Haffert, Yinzi Xin, Rico Landman
Spatial Mode Demultiplexers (SPADE) are devices that split an incoming wavefront into a particular set of electric field modes. SPADEs have been shown to be quantum-optimal for man…
The Roman Coronagraph Community Participation Program: pre-launch reference star list and impact of reference star properties on post-processing performance
Justin Hom, Schuyler G. Wolff, Jessica Gersh-Range +51
The upcoming Roman Coronagraph will be the first high-contrast instrument in space capable of high-order wavefront sensing and control technologies, a critical technology demonstra…
Optimal mode-sorting coronagraphy: limits of single-moded measurements for the Habitable Worlds Observatory
Yinzi Xin, Sebastiaan Haffert, Rico Landman
Conventional coronagraph architectures struggle to reach the theoretical limit of exoplanet detection at close working angles. Spatial mode-sorting is capable of reaching the theor…
Making the unmodulated Pyramid wavefront sensor smart. Closed-loop demonstration of neural network wavefront reconstruction with MagAO-X
Rico Landman, Sebastiaan Haffert, Jared Males +12
Almost all current and future high-contrast imaging instruments will use a Pyramid wavefront sensor (PWFS) as a primary or secondary wavefront sensor. The main issue with the PWFS…
Integrated photonic-based coronagraphic systems for future space telescopes
Niyati Desai, Lorenzo König, Emiel Por +38
The detection and characterization of Earth-like exoplanets around Sun-like stars is a primary science motivation for the Habitable Worlds Observatory. However, the current best te…
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…
Self-optimizing adaptive optics control with Reinforcement Learning for high-contrast imaging
Rico Landman, Sebastiaan Y. Haffert, Vikram M. Radhakrishnan +1
Current and future high-contrast imaging instruments require extreme adaptive optics (XAO) systems to reach contrasts necessary to directly image exoplanets. Telescope vibrations a…
Self-optimizing adaptive optics control with Reinforcement Learning
Rico Landman, Sebastiaan Y. Haffert, Vikram M. Radhakrishnan +1
Current and future high-contrast imaging instruments require extreme Adaptive Optics (XAO) systems to reach contrasts necessary to directly image exoplanets. Telescope vibrations a…
Nonlinear wavefront reconstruction with convolutional neural networks for Fourier-based wavefront sensors
Rico Landman, Sebastiaan Haffert
Fourier-based wavefront sensors, such as the Pyramid Wavefront Sensor (PWFS), are the current preference for high contrast imaging due to their high sensitivity. However, these wav…