Free Access
Fig. A.1

The fraction of encircled counts of the apodised PSF as a function of off-axis distance in microns. (Inset) The apodised PSF logarithmically stretched with overlaid circles showing the relative size of various MMFs.
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.