Designer surface plasmon dispersion on a one-dimensional periodic slot metasurface with glide symmetry (journal article)
Camacho, M; Mitchell-Thomas, RC; Hibbins, AP; et al.Roy Sambles, J; Quevedo-Teruel, O
Date: 1 September 2017
Journal
Optics Letters
Publisher
Optical Society of America
Publisher DOI
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Abstract
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 ...
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.
Physics and Astronomy
Faculty of Environment, Science and Economy
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