Figure 5
From: Active Brownian motion of strongly coupled charged grains driven by laser radiation in plasma

Single layer of the observed grain cloud at different values of laser power Plas, effective coupling parameter Γ* and kinetic (effective) temperature of the grains: (a) Γ* = 525, Plas = 40 mW, Ekin = 1.38 eV; (b) Γ* = 31, Plas = 131 mW, Ekin = 26.7 eV.