Figure 3.
(a) The relation of the linear velocity of circular motion and laser power at a field frequency of 2 kHz and field voltage of 1.5 Vpp. Inset: The trajectories of the circular motion in the co-field direction, the radiuses of which are linearly proportional to laser power. The time interval of each point is 0.07 s. (b) The relation of the angular velocity of circular motion and laser power, which is independent of laser power. (c) The relation of the linear velocity of circular motion and voltage at a field frequency of 2 kHz and with a laser irradiation of 360 mW. (d) The relation of the angular velocity of circular motion and voltage, which is proportional to the square of voltage.