Designer surface plasmon dispersion on a one-dimensional periodic slot metasurface with glide symmetry

In this Letter, we explore the dispersion of spoof surface plasmons supported by a single-layer glide-symmetric structure. This structure consists of an infinitely long double-notched slot perforated in a metal layer. The presence of a degeneracy of the two lowest-order modes at the Brillouin zone ...

Source: Optics Letters - August 21, 2017 Category: Physics Authors: Miguel Camacho Rhiannon C. Mitchell-Thomas Alastair P. Hibbins J. Roy Sambles Oscar Quevedo-Teruel Source Type: research