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Infrared Topological Plasmons in Graphene

Dafei Jin, Thomas Christensen, Marin Soljačić, Nicholas X. Fang, Ling Lu, and Xiang Zhang
Phys. Rev. Lett. 118, 245301 – Published 16 June 2017; Erratum Phys. Rev. Lett. 119, 019901 (2017)
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Abstract

We propose a two-dimensional plasmonic platform—periodically patterned monolayer graphene—which hosts topological one-way edge states operable up to infrared frequencies. We classify the band topology of this plasmonic system under time-reversal-symmetry breaking induced by a static magnetic field. At finite doping, the system supports topologically nontrivial band gaps with mid-gap frequencies up to tens of terahertz. By the bulk-edge correspondence, these band gaps host topologically protected one-way edge plasmons, which are immune to backscattering from structural defects and subject only to intrinsic material and radiation loss. Our findings reveal a promising approach to engineer topologically robust chiral plasmonic devices and demonstrate a realistic example of high-frequency topological edge states.

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  • Received 23 February 2017
  • Publisher error corrected 20 June 2017

DOI:https://doi.org/10.1103/PhysRevLett.118.245301

© 2017 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Corrections

20 June 2017

Erratum

Publisher’s Note: Infrared Topological Plasmons in Graphene [Phys. Rev. Lett. 118, 245301 (2017)]

Dafei Jin, Thomas Christensen, Marin Soljačić, Nicholas X. Fang, Ling Lu, and Xiang Zhang
Phys. Rev. Lett. 119, 019901 (2017)

Authors & Affiliations

Dafei Jin1,*, Thomas Christensen2,†, Marin Soljačić2, Nicholas X. Fang3, Ling Lu4,‡, and Xiang Zhang1,§

  • 1Department of Mechanical Engineering, University of California, Berkeley, California 94720, USA
  • 2Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
  • 3Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
  • 4Institute of Physics, Chinese Academy of Sciences/Beijing National Laboratory for Condensed Matter Physics, Beijing 100190, China

  • *dafeijin@berkeley.edu
  • tchr@mit.edu
  • linglu@iphy.ac.cn
  • §xzhang@me.berkeley.edu

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Issue

Vol. 118, Iss. 24 — 16 June 2017

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