Figure 4
From: ‘Photonic Hook’ based optomechanical nanoparticle manipulator
(a,b) Comparison of the field strength E relative to the incident field Ei produced when the (a) λ/2 glass and (b) λ/2 gold obstacles are introduced. (c–f) Forces produced by the cuboid system with an additional (c,d) glass obstacle with (c) width λ/2 and (d) width λ/4, and a (e,f) gold obstacle with (e) width λ/2 and (f) width λ/4. The color plot represents the force magnitude, the streamlines and arrows represent possible trajectories and the force direction, respectively. The black region at the left represents the cuboid and the white regions have thickness equal to the particle radius. White circles in (c), (e), and (f) show the locations of trapping. Figures (a) and (b); (c) and (d); and (e) and (f) use the same color scales.
