Figure 2
Experimental and numerical SCS of a single HRI disk reveals a non-degenerate MD resonance. (a) Scattering cross sections of a disk (r = 3 mm and L = 4 mm) with dielectric constant of ε = 78 + i0.05 for different incident wave polarization and disk orientations: SCUFF numerical results in cm2 (solid curves) and experimental measurements in a.u. (symbols) are shown; the latter are obtained from experimental scattering spectra (see Supplemental Fig. S1) through angular integration in a dipole scattering plane (rather than in the entire space). Insets show the scattering geometry for all resonances. (b) Real and imaginary parts of the MD polarizibilities extracted from the numerical calculations that will be used below in the coupled electric/magnetic dipole formulations. Insets show the toroidal shape of the dipolar radiation pattern oriented in accordance with the scattering geometries shown in the insets in (a).
