Microdroplet Actuation via Light Line Optoelectrowetting (LL-OEW)

Figure 6

(LL-OEW) Frames from a video showing the droplet movement as a consequence of the movement of the light line. The droplet of 1 mm radius is actuated with a voltage of ±48 V at 50 Hz. The spacer appears green due to the scattered light from the OEW laser diode source. The surface-parallel light line can be identified by higher scattered intensities (even within the dark area) and reflexes. The droplet volume is 0.8 μl here.