Figure 2
(a) Is a far field projection of the reflected electromagnetic wave with θr = 45°. Here θi is equal to 0° (i.e. normal to metasurface) and the polarization of electric field is in the \(\widehat{y}\) direction. \(\frac{\lambda }{a}\) and \(\frac{2\pi }{\zeta }\) are the lattice constants for one unit-cell of the resonator arrays in \(\widehat{y}\) and in \(\widehat{x}\) directions, respectively. (b) Is a plot of different angles of reflections that arise from using generalized Snell’s law for anomalously reflected light. At ζ = 0, the angle of reflection is the same as specularly reflected light. In the plot θr,spec refers to the specularly reflected wave, which is opposite sign to the incidence angle θr,anom refers to the angles of reflection of the anomalously reflected waves.
