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

被引：49

作者：

Camacho, Miguel ^{[1
]}

Mitchell-Thomas, Rhiannon C. ^{[1
]}

Hibbins, Alastair P. ^{[1
]}

Sambles, J. Roy ^{[1
]}

Quevedo-Teruel, Oscar ^{[2
]}

机构：

[1] Univ Exeter, Dept Phys & Astron, Electromagnet & Acoust Mat Grp, Stocker Rd, Exeter EX4 4QL, Devon, England

[2] KTH Royal Inst Technol, Dept Electromagnet Engn, Stockholm, Sweden

来源：

OPTICS LETTERS | 2017年 / 42卷 / 17期

基金：

英国工程与自然科学研究理事会;

关键词：

PHOTONIC CRYSTAL SLABS; WAVE-GUIDES; MODES; FILMS;

D O I：

10.1364/OL.42.003375

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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. (C) 2017 Optical Society of America

引用

页码：3375 / 3378

页数：4

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