Exact solution for square-wave grating covered with graphene: surface plasmon-polaritons in the terahertz range

被引：40

作者：

Peres, N. M. R. ^{[1
,2
]}

Bludov, Yu V. ^{[1
,2
]}

Ferreira, Aires ^{[3
,4
]}

Vasilevskiy, M. I. ^{[1
,2
]}

机构：

[1] Univ Minho, Dept Phys, P-4710057 Braga, Portugal

[2] Univ Minho, Ctr Phys, P-4710057 Braga, Portugal

[3] Natl Univ Singapore, Graphene Res Ctr, Singapore 117542, Singapore

[4] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2013年 / 25卷 / 12期

基金：

新加坡国家研究基金会;

关键词：

INFRARED-SPECTROSCOPY; DIFFRACTION; DYNAMICS;

D O I：

10.1088/0953-8984/25/12/125303

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We provide an analytical solution to the problem of scattering of electromagnetic radiation by a square-wave grating with a flat graphene sheet on top. We show that for deep groves there is a strong plasmonic response, with light absorption in the graphene sheet reaching more than 45% due to the excitation of surface plasmon-polaritons. The case of a grating with a graphene sheet presenting an induced periodic modulation of the conductivity is also discussed.

引用

页数：10

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