705 citations · 2.1k across the 18 of their papers we have counts for
13 papers · 1 filter
High-contrast imager for complex aperture telescopes (HiCAT): 8. Dark zone demonstration with simultaneous closed-loop low-order wavefront sensing and control
Rémi Soummer, Emiel H. Por, Raphaël Pourcelot +27
We present recent laboratory results demonstrating high-contrast coronagraphy for the future space-based large IR/Optical/Ultraviolet telescope recommended by the Decadal Survey. T…
The James Webb Space Telescope Mission
Jonathan P. Gardner, John C. Mather, Randy Abbott +1004
Twenty-six years ago a small committee report, building on earlier studies, expounded a compelling and poetic vision for the future of astronomy, calling for an infrared-optimized…
The James Webb Space Telescope Mission: Optical Telescope Element Design, Development, and Performance
Michael W. McElwain, Lee D. Feinberg, Marshall D. Perrin +126
The James Webb Space Telescope (JWST) is a large, infrared space telescope that has recently started its science program which will enable breakthroughs in astrophysics and planeta…
Connecting the astronomical testbed community -- the CAOTIC project: Optimized teaching methods for software version control concepts
Iva Laginja, Pablo Robles, Kevin Barjot +4
Laboratory testbeds are an integral part of conducting research and developing technology for high-contrast imaging and extreme adaptive optics. There are a number of laboratory gr…
The Science Performance of JWST as Characterized in Commissioning
Jane Rigby, Marshall Perrin, Michael McElwain +623
This paper characterizes the actual science performance of the James Webb Space Telescope (JWST), as determined from the six month commissioning period. We summarize the performanc…
Wavefront tolerances of space-based segmented telescopes at very high contrast: Experimental validation
Iva Laginja, Jean-François Sauvage, Laurent M. Mugnier +8
Context: The detection and characterization of Earth-like exoplanets (exoEarths) from space requires exquisite wavefront stability at contrast levels of . On segmented te…
Dark zone maintenance results for segmented aperture wavefront error drift in a high contrast space coronagraph
Susan F. Redmond, Laurent Pueyo, Leonid Pogorelyuk +8
Due to the limited number of photons, directly imaging planets requires long integration times with a coronagraphic instrument. The wavefront must be stable on the same time scale,…
Predicting contrast sensitivity to segmented aperture misalignment modes for the HiCAT testbed
Iva Laginja, Remi Soummer, Laurent M. Mugnier +10
This paper presents the setup for empirical validations of the Pair-based Analytical model for Segmented Telescope Imaging from Space (PASTIS) tolerancing model for segmented coron…
Experimental validation of coronagraphic focal-plane wavefront sensing for future segmented space telescopes
Lucie Leboulleux, Jean-François Sauvage, Rémi Soummer +6
Direct imaging of Earth-like planets from space requires dedicated observatories, combining large segmented apertures with instruments and techniques such as coronagraphs, wavefron…
High-contrast imager for complex aperture telescopes (HiCAT): 5. first results with segmented-aperture coronagraph and wavefront control
Remi Soummer, Gregory R. Brady, Keira Brooks +19
Segmented telescopes are a possibility to enable large-aperture space telescopes for the direct imaging and spectroscopy of habitable worlds. However, the complexity of their apert…
High-contrast Imager for Complex Aperture Telescopes (HiCAT): 6. Software Control Infrastructure and Calibration
Christopher Moriarty, Keira Brooks, Remi Soummer +5
High contrast imaging using coronagraphy is one of the main avenues to enable the search for life on extrasolar Earth analogs. The HiCAT testbed aims to demonstrate coronagraphy an…
Phase-Retrieval-Based Wavefront Metrology for High Contrast Coronagraphy
Gregory R. Brady, Christopher Moriarty, Peter Petrone +5
We discuss the use of parametric phase-diverse phase retrieval as an in-situ high-fidelity wavefront measurement method to characterize and optimize the transmitted wavefront of a…
Polarization dOTF: on-sky focal plane wavefront sensing
Keira J. Brooks, Laure Catala, Matthew A. Kenworthy +2
The differential Optical Transfer Function (dOTF) is a focal plane wavefront sensing method that uses a diversity in the pupil plane to generate two different focal plane images. T…