3 papers
astro-ph.IM2024
Revisiting the Borde-Traub focal plane wavefront estimation technique for exoplanet direct imaging
Axel Potier, A J Eldorado Riggs, Garreth Ruane +8
Direct imaging of exoplanets relies on complex wavefront sensing and control architectures. In addition to fast adaptive optics systems, most of the future high-contrast imaging in…
astro-ph.IM2023
Experimental demonstration of spectral linear dark field control at NASA's high contrast imaging testbeds
Phillip K. Poon, Axel Potier, Garreth Ruane +6
Due to the low flux of exoEarths, long exposure times are required to spectrally characterize them. During these long exposures, the contrast in the dark hole will degrade as the t…
astro-ph.IM2023
Dual Purpose Lyot Coronagraph Masks for Simultaneous High-Contrast Imaging and High-Resolution Wavefront Sensing
Garreth Ruane, J. Kent Wallace, A J Eldorado Riggs +8
Directly imaging Earth-sized exoplanets with a visible-light coronagraph instrument on a space telescope will require a system that can achieve raw contrast and main…