You, JW;
Wang, Y;
Panoiu, NC;
(2020)
Valley-Hall Topological Transport in Graphene Plasmonic Crystal Waveguides.
In:
2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials).
(pp. pp. 343-345).
IEEE: New York City, NY, USA.
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Abstract
Due to immunity to disorder and structural imperfections, topologically-protected plasmonic modes have recently attracted increasing attention. Here, we introduce two different mechanisms to construct valley-Hall domain-wall interface waveguides in graphene plasmonic crystal to mimic the quantum valley-Hall effect. In the first case, we break the in-plane spatial inversion symmetry of a single-layer graphene plasmonic crystal waveguide to achieve valley-Hall topological characteristics, whereas in the second case, we break the out-of-plane spatial inversion symmetry of a bi-layer graphene plasmonic crystal waveguide to implement the analog quantum valley-Hall effect. A molecular sensor based on this valley-Hall topological transport phenomenon is also be presented.
| Type: | Proceedings paper |
|---|---|
| Title: | Valley-Hall Topological Transport in Graphene Plasmonic Crystal Waveguides |
| Event: | 2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) |
| ISBN-13: | 9781728161044 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/Metamaterials49557.2020.9285067 |
| Publisher version: | http://dx.doi.org/10.1109/Metamaterials49557.2020.... |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions |
| 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/10120742 |
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