Free Access
Fig. 2
Number of wavelengths after which the switch to the exponential damping profile occurs (1/κ) as a function of the density contrast ratio ρ0/ρe. For ρ0/ρe < 2 the Gaussian damping profile is expected to dominate the observed signal. For ρ0/ρe > 3 only the first 1–2 wavelengths exhibit the Gaussian damping behaviour.
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.