Curved trajectories on transformed metal surfaces: Beam-splitter, invisibility carpet and black hole for surface plasmon polaritons

摘要

Transformational optics is shown to enhance the control of the electromagnetic wave trajectories within metamaterials with unconventional functionalities such as a beam splitter, a toroidal carpet and a black hole, all of which are specially designed for surface plasmon polaritons (SPPs) propagating on a metal plate.