Fig. 3: Experimental test of rotary electrowetting on dielectric (EWOD) beam steering system.
From: Adaptive optical beam steering and tuning system based on electrowetting driven fluidic rotor
a Rotary electrowetting on dielectric (EWOD) beam steering system. The dashed white parallelogram indicates the reflecting membrane. b Side view of the droplet adhered to the reflecting membrane. c–f The snapshots of the reflecting membrane at different orientations. The dashed line in each snapshot indicates the top edge of the reflecting membrane. g Steering speed of the reflecting membrane driven by EWOD in response to the intermittent and synchronized square-wave alternating current (AC) signals. The dashed line indicates the average angular velocity and the average linear velocity. h Experimentally measured specular reflectance of the reflecting membrane with and without the fluoropolymer coating.
