Figure 3
From: Capillary wave tweezer
Control of particle position using capillary tweezers. (a) Schematic drawing of the capillary wave and particle displacement. The current position of the upper plates is indicated by the solid orange lines while the dashed orange lines indicate their original positions. The blue solid line indicates the current position of the particles, while the dashed blue line indicates their original position. (b) Experimental sequence of particle displacement at a translation speed of \(v_t=\) 0.1 \(\hbox {mms}^{-1}\) at an actuation amplitude of \(V_0=\) 3 \(\hbox {V}\). (c) \(v_t=\) 0.5 \(\hbox {mms}^{-1}\) and actuation amplitude of \(V_0=\) 6 \(\hbox {V}\). (d) \(v_t=\) 0.5 \(\hbox {mms}^{-1}\) and actuation amplitude of \(V_0=\) 4 \(\hbox {V}\). (e) \(v_t=\) 0.5 \(\hbox {mms}^{-1}\) and actuation amplitude of \(V_0=\)3 \(\hbox {V}\). In all the experiments, the upper plate separation distance \(d=\) 3.5 \(\hbox {mm}\), which corresponds to a frequency of \(f=\) 58 \(\hbox {Hz}\) for a capillary wave of one wavelength. The liquid height \(h_l=\) 0.5 \(\hbox {mm}\).
