activity
20202023
most citedWavefront sensing and control in space-based coronagraph instruments using Zernike's phase-contrast method

25 citations · 47 across the 5 of their papers we have counts for

collaborators

5 papers

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★ 1 cited

Comparative laboratory study of electric field conjugation algorithms

Niyati Desai, Axel Potier, Susan F. Redmond +5

Future space telescope coronagraph instruments hinge on the integration of high-performance masks and precise wavefront sensing and control techniques to create dark holes essentia…

astro-ph.IM2023★ 2 cited

Random Vibration Testing of Microelectromechanical Deformable Mirrors for Space-based High-Contrast Imaging

Axel Potier, Camilo Mejia Prada, Garreth Ruane +11

Space-based stellar coronagraph instruments aim to directly image exoplanets that are a fraction of an arcsecond separation and ten billion times fainter than their host star. To a…

astro-ph.IM2022★ 19 cited

Broadband Vector Vortex Coronagraph Testing at NASA's High Contrast Imaging Testbed Facility

Garreth Ruane, A J Eldorado Riggs, Eugene Serabyn +6

The unparalleled theoretical performance of an ideal vector vortex coronagraph makes it one of the most promising technologies for directly imaging exoplanets with a future, off-ax…

astro-ph.IM2020★ 25 cited

Wavefront sensing and control in space-based coronagraph instruments using Zernike's phase-contrast method

Garreth Ruane, J. Kent Wallace, John Steeves +14

Future space telescopes with coronagraph instruments will use a wavefront sensor (WFS) to measure and correct for phase errors and stabilize the stellar intensity in high-contrast…