Self-complementary metasurfaces as efficient tools for polarization sensitive control of THz beams

In this work we present the results of numerical simulation of the self-complementary metasurface which is illuminated by circular polarized plane wave providing an anomalous refraction of the cross-polarized THz beam. We show that the metasurface will create the cross-polarized beam in the desired transmission angle, while keeping the co-polarized beam transmitted in the broadside. It could be obtained by gradually altering the geometry of the unit cell along the metasurface to get different phase jumps for the cross-polar coefficients.