Segmented DM misalignments on HiCAT degrade coronagraph contrast by a factor of 2.5 from 0.5e-8, matching lab observations and stressing the need for sub-nm cophasing control for the Habitable Worlds Observatory.
Low-order wavefront control using a Zernike sensor through Lyot coronagraphs for exoplanet imaging. Blind stabilization of an image dark hole
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Impact of segmented deformable mirrors on high-contrast testbeds for exoplanet imaging with future large space telescopes: contrast stability assessment on the HiCAT bench
Segmented DM misalignments on HiCAT degrade coronagraph contrast by a factor of 2.5 from 0.5e-8, matching lab observations and stressing the need for sub-nm cophasing control for the Habitable Worlds Observatory.