Ultrafast Microscopy of Sliding Droplets
Wetting phenomena occur daily around us and are relevant for numerous applications. Still, the dynamics of wetting is poorly understood. This is particularly true for water. With respect to wetting, water is distinct due to its relatively high surface tension, low viscosity and high dielectric permittivity.
One particularly interesting questions is: which effect do molecular or nanoscopic defects have on the dynamics of wetting? Can one for example control the speed of a drop sliding down an inclined plate by defects? Since the motion of moving drops is determined by processes at the contact line, the goal is to image the effect of defects on the motion of contact lines.


