Figure 4

Analysis of the resonant modes. (a, b) Multipole coefficients of vector spherical harmonics for electric (black) and magnetic (red) dipoles scattered from the metasurface for lattice parameters \(a=2.0\) and \(1.5\;\upmu\)m respectively, obtained at a distance of \(r=1.2 r_0\), where \(r_0\) is the radius of sphere circumscribing the cubes. (c) Normalized scattered field contributions of electric dipole (p), toroidal dipole (T), magnetic dipole (m), total electric dipole (D) and sum of all these contributions (TD) obtained from Cartesian decomposition for periodicity \(a=2\;\upmu\)m. (d) The intensity transmittance (T), reflectance (R) and absorbtance (A) obtained from electric and magnetic dipole contributions and (e, f) Magnitude and directions (represented as vectors) of field within the all-dielectric metasurface of the anapole-like state and anapole state, at 60 and 62 THz, respectively, for periodicity \(a=2\;\upmu\)m.