H. J. Rance, T. J. Constant, A. P. Hibbins, and J. R. Sambles
Phys. Rev. B 86, 125144 (2012)
http://dx.doi.org/10.1103/PhysRevB.86.125144 [PDF]
Surface waves at microwave frequencies are excited on a zigzag metasurface formed from unit cells comprised of a pair of identical, alternately oriented, rhombic-shaped metal tubes. This particular symmetry leads to diffractive excitation, with polarization selectivity of different orders, of a family of surface waves. Furthermore, the expected band gap at the first Brillouin zone boundary is absent.
