Designer surface plasmon dispersion on a one-dimensional periodic slot metasurface with glide symmetry (journal article)
Roy Sambles, J
Optical Society of America
Reason for embargo
Publisher policy. Publisher granted permission for 6-month embargo
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 boundary, which have non-zero group velocity is explained and experimentally demonstrated. Further, the dependence of the band structure when glide-symmetric configuration is broken is also explored.
Engineering and Physical Sciences Research Council (EPSRC) (EP/L015331/1).
All data created during this research are openly available in ORE at http://hdl.handle.net/10871/28774
This is the author accepted manuscript. The final version is available from Optical Society of America via the DOI in this record.
Vol. 42 (17), pp. 3375 - 3375