Figure 6
From: Light scattering and surface plasmons on small spherical particles
Fano resonance on Mie scattering by a small metal sphere (a) and energy flow in the quadrupole resonance with the singular vortices represented by the Poynting vector field (b). In a, Radar back scattering and forward scattering directions are indicated by the red line and blue line, respectively, the dielectric function ε(ω) is described by Drude model with the dissipation parameter γ=0.001ωp and the particle size is a=0.8c/ωp. In b, q=0.3 and εd=−1.553, the blue line denotes the particle surface, the red lines indicate the separatrix. Figure reproduced with permission, b from Ref. 27 ©2007 IOP.
