Fig. 2
Download original image
Post-coronagraphic focal plane for various coronagraphs. The solid rectangles show the area that is used to sense the aberrations while the dashed area shows the area that is controlled. For the scalar corongraphs a median contrast below 10−9 is reached. Only the vector vortex coronagraph is not able to reach such a deep contrast for an unpolarized input beam.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.