Fig. 3: Analysis of 4k fps video for dust density wave diagnostic.
From: Decoupling of dust cloud and embedding plasma for high electron depletion in nanodusty plasmas
a A 60 mm long and 3 mm high image of the wave patterns acquired with Camera C4. It shows the fluctuations by subtracting the mean intensity over all frames from a single frame. The graph below this image shows the column average in units of cameras least significant bit. The dashed black line denotes the extent of the electrodes shield. Analysis for (b) is confined to the red box. b Local ω and k of the dust density wave determined by means of Hilbert transform.
