advancing technologies for future segmented telescopes · 2021. 1. 13. · juanola-parramon et al....
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EXPANDING THE FRONTIERS OF S PACE AS TRONOMY
Advancing Technologies for future Segmented Telescopes
Russell B. Makidon Optics Laboratory
Laurent Pueyo for STScI HiCAT team
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High contrast imaging with segmented apertures
FACT SHEET
MONITOR THE SOLAR SYSTEM IN HIGH DEFINITION
2.4-m space telescope 8-m LUVOIR-B 15-m LUVOIR-A
REVEAL THE FORMATION OF COSMIC STRUCTURE AND THE EVOLUTION OF GALAXIES
LARGE UV / OPTICAL / INFRARED SURVEYOR
TELLING THE STORY OF LIFE IN THE UNIVERSE
CHARACTERIZE LARGE NUMBERS OFDIVERSE EXOPLANETS
FIND EARTH-LIKE WORLDS ANDSEARCH FOR SIGNS OF LIFE
Pluto
https://asd.gsfc.nasa.gov/luvoir/
What we want. What we are working on.
Juanola-Parramon et al. (2019)
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First result with fully segmented aperture
Contrast with monolithic aperture 6e-8
Contrast with segmented aperture 2e-7 (partial calibration, circa December 2020)
Co
ron
agra
ph
WF
sen
sin
g &
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ol
Segmented DM
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Wavefront Maintenance under in the presence of artificial drifts
• Unobstructed monolithic aperture
• 0.01 nm random drift per iteration (4000 iterations)
• 8e-8 stable contrast over 6 hours compared to 4e-7 open loop measured contrast
• Susan Redmond (PhD student Princeton), SPIE astronomical instrumentation 2020