62 citations · 144 across the 15 of their papers we have counts for
16 papers
Simulation tools for realistic high-order wavefront correction with the Roman Coronagraph
A. Lau, A. J. Riggs, S. F. Redmond +9
The Roman Space Telescope Coronagraph Instrument (Roman CGI) will demonstrate high-contrast imaging from space using coronagraphic masks, deformable mirrors, and high-order wavefro…
Enhanced wavefront sensing for the Roman Coronagraph Instrument: Gaussian probes and compact model validation
Lukas Delaye, Iva Laginja, Pierre Baudoz +10
The Coronagraph Instrument on the Roman Space Telescope will be the first space-based system to demonstrate closed-loop focal-plane wavefront sensing and control, a key step toward…
Black Silicon BRDF and Polarization for Coronagraphic Pupil Masks
Emory L. Jenkins, Ramya M. Anche, Kyle J. Van Gorkom +2
Future space observatories will likely have segmented primaries, causing diffraction effects that reduce coronagraph performance. Reflective binary pupil apodizer masks can mitigat…
Implicit Electric Field Conjugation Through a Single-mode Fiber
Joshua Liberman, Jorge Llop-Sayson, Arielle Bertrou-Cantou +4
Connecting a coronagraph instrument to a spectrograph via a single-mode optical fiber is a promising technique for characterizing the atmospheres of exoplanets with ground and spac…
Current laboratory performance of starlight suppression systems, and potential pathways to desired Habitable Worlds Observatory exoplanet science capabilities
Bertrand Mennesson, Ruslan Belikov, Emiel Por +34
We summarize the current best polychromatic (10 to 20 % bandwidth) contrast performance demonstrated in the laboratory by different starlight suppression approaches and systems des…
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…
FALCO simulations of high-contrast polarimetry with the Nancy Grace Roman Space Telescope Coronagraph Instrument
David S. Doelman, Hanae Belaouchi, A. J. Riggs +6
The Coronagraph Instrument of the Nancy Grace Roman Space Telescope (Roman Coronagraph) will be capable of both total intensity and polarization measurements of circumstellar disks…
Benefits of adding radial phase dimples on scalar coronagraph phase masks
Niyati Desai, Dimitri Mawet, Eugene Serabyn +4
Current scalar coronagraph focal plane mask designs are performance-limited by chromaticity. We investigate the effects of adding central Roddier and dual zone phase dimples to sca…
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…
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…
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…
Laboratory demonstration of the wrapped staircase scalar vortex coronagraph
Niyati Desai, Garreth J. Ruane, Jorge D. Llop-Sayson +5
Of the over 5000 exoplanets that have been detected, only about a dozen have ever been directly imaged. Earth-like exoplanets are on the order of 10 billion times fainter than thei…
Contrast performance of an 8m off-axis, segmented space telescope equipped with an adaptive optics system
Axel Potier, Garreth Ruane, Kiarash Tajdaran +9
The Astro2020 decadal survey recommended an infrared, optical, ultra-violet (IR/O/UV) telescope with a 6~m inscribed diameter and equipped with a coronagraph instrument to di…
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…
Shaped Pupil Lyot Coronagraphs: High-Contrast Solutions for Restricted Focal Planes
Neil T. Zimmerman, A J Eldorado Riggs, N. Jeremy Kasdin +2
Coronagraphs of the apodized pupil and shaped pupil varieties use the Fraunhofer diffraction properties of amplitude masks to create regions of high contrast in the vicinity of a t…
Demonstration of high contrast with an obscured aperture with the WFIRST-AFTA shaped pupil coronagraph
Eric Cady, Camilo Mejia Prada, Xin An +10
The coronagraph instrument on the WFIRST-AFTA mission study has two coronagraphic architectures, shaped pupil and hybrid Lyot, which may be interchanged for use in different observ…