Zoom of the dispersion diagram of Fig. 2 (Eq. (31)) near the bands for the values of the parameters shown in the legend. Only the first ten modes farther from each accumulation frequency have been plotted in each panel. The upper panel is centred on the first band (Eq. (35)), the central panel is around the second band (positive sign of Eq. (36)), and the lower one is around the third band (negative sign of Eq. (36)). The values of the accumulation frequencies have been overplotted as a dashed line.
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.