Figure 4

The force distributions when l equals 1, 3, 5. (a) The optical force along the x-direction; (b) The trapping potential along the x-direction; (c) The angular optical force of metallic particle every 30 degrees along the focal ring of Q-PV.
The force distributions when l equals 1, 3, 5. (a) The optical force along the x-direction; (b) The trapping potential along the x-direction; (c) The angular optical force of metallic particle every 30 degrees along the focal ring of Q-PV.