activity
20082026
most citedCalibration of quasi-static aberrations in exoplanet direct-imaging instruments with a Zernike phase-mask sensor

158 citations · 1.4k across the 79 of their papers we have counts for

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Showing 2024Show all

4 papers · 1 filter

astro-ph.IM2024★ 3 cited

Cascade adaptive optics with a second stage based on a Zernike wavefront sensor for exoplanet observations

M. N'Diaye, A. Vigan, B. Engler +7

Over the past decade, the high-contrast observation of disks and gas giant planets around nearby stars has been made possible on ground-based instruments using extreme adaptive opt…

astro-ph.IM2024★ 3 cited

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…

astro-ph.IM2024★ 1 cited

High-contrast imager for complex aperture telescopes (HiCAT): 11. System-level demonstration of the Apodized Pupil Lyot Coronagraph with a segmented aperture in air

Rémi Soummer, Raphaël Pourcelot, Emiel H. Por +16

We present the final results of the Apodized Pupil Lyot Coronagraph (APLC) on the High-contrast imager for Complex Aperture Telescopes (HiCAT) testbed, under NASA's Strategic Astro…

astro-ph.IM2024

Mid-order wavefront control for exoplanet imaging: preliminary characterization of the segmented deformable mirror and Zernike wavefront sensor on HiCAT

B. Buralli, M. N'Diaye, R. Pourcelot +13

We study a mid-order wavefront sensor (MOWFS) to address fine cophasing errors in exoplanet imaging with future large segmented aperture space telescopes. Observing Earth analogs a…