Ultrathin metasurface with topological transition for manipulating spoof surface plasmon polaritons
Ultrathin metasurface with topological transition for manipulating spoof surface plasmon polaritons
Metasurfaces, with intrinsically planar nature and subwavelength thickness, provide us unconventional methodologies to not only mold the flow of propagating waves but also manipulate near-field waves. Plasmonic metasurfaces with topological transition for controlling surface plasmon polaritons (SPPs) recently have been experimentally demonstrated, which, however, are limited to optical frequencies. In …