Mitrofanov, O;
Yu, W;
Thompson, RJ;
Jiang, Y;
Brener, I;
Pan, W;
Berger, C;
... Jiang, Z; + view all
(2013)
Probing terahertz surface plasmon waves in graphene structures.
Applied Physics Letters
, 103
(11)
, Article 111105. 10.1063/1.4820811.
![[thumbnail of 1.4820811.pdf]](https://discovery.ucl.ac.uk/style/images/fileicons/application_pdf.png) Preview |
PDF
1.4820811.pdf Download (2MB) |
Abstract
Epitaxial graphene mesas and ribbons are investigated using terahertz (THz) near-field microscopy to probe surface plasmon excitation and THz transmission properties on the sub-wavelength scale. The THz near-field images show variation of graphene properties on a scale smaller than the wavelength, and excitation of THz surface waves occurring at graphene edges, similar to that observed at metallic edges. The Fresnel reflection at the substrate SiC/air interface is also found to be altered by the presence of graphene ribbon arrays, leading to either reduced or enhanced transmission of the THz wave depending on the wave polarization and the ribbon width.
| Type: | Article |
|---|---|
| Title: | Probing terahertz surface plasmon waves in graphene structures |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1063/1.4820811 |
| Publisher version: | http://dx.doi.org/10.1063/1.4820811 |
| Language: | English |
| Additional information: | © 2013 The Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License (CC BY) (http://creativecommons.org/licenses/by/3.0/). |
| Keywords: | Graphene, Surface waves, Plasmons, Gold, Terahertz radiation, Surface plasmons, Terahertz imaging, Polarization, Epitaxy, Plasma waves |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1404721 |
Archive Staff Only
 |
View Item |
