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

摘要

Transformational optics are shown to markedly enhance the control of theelectromagnetic wave trajectories within metamaterials with unconventionalfunctionalities such as a beam splitter, a toroidal carpet, a Luneburg lens anda black hole, all of which are specially designed for surface plasmonpolaritons propagating on a metal plate