Figure 1
From: Giant resonant light forces in microspherical photonics
(a) Schematic of the illumination of a cylinder by a surface wave with the frequency ω guided by the boundary of a half-space with εm<0. The scattering of the surface wave (the typical far field directionality of bulk radiation at resonance is shown in red) creates the propelling force Fx along the surface. (b) Size dependence of the resonant force on the cylinder for various values of the cylinder-boundary separation. (c, top frame) Size dependence of the propelling force on the size parameter kR for the excitation by a surface wave (red curve corresponds to kd=1.5) and by a plane wave (blue curve). (c, bottom frame). Transmittance for the surface wave (olive curve corresponds to kd=1.5).
