Figure 5

Simulated surface current distributions of the two-layer metasurfaces at 1670 nm. The surface current density for designed two-layer metasurfaces with orientation angle equal to (a) (d) 45°, (b) (e) 0° and (c) (f) −45°, respectively with (a–c) x-polarized and (d–f) y-polarized incidence. The induced electric and magnetic dipoles have antiparallel components and parallel components for orientation angle equal to 45° and −45° respectively, resulting in the opposite handedness of the two-layer metasurfaces.