Chiral plasmon in gapped Dirac systems
Name
PhysRevB.93.041413.pdf
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Author(s)
Kumar, Anshuman
Nemilentsau, Andrei
Fung, Kin Hung
Hanson, George
Low, Tony
Fang, Nicholas Xuanlai
Date Issued
January 2016
Journal
Physical Review B
Publisher
American Physical Society
Citation
Kumar, Anshuman, Andrei Nemilentsau, Kin Hung Fung, George Hanson, and Nicholas X. Fang. "Chiral plasmon in gapped Dirac systems." Phys. Rev. B 93, 041413 (January 2016). © 2016 American Physical Society
Version
Final published version
Abstract
We study the electromagnetic response and surface electromagnetic modes in a generic gapped Dirac material under pumping with circularly polarized light. The valley imbalance due to pumping leads to a net Berry curvature, giving rise to a finite transverse conductivity. We discuss the appearance of nonreciprocal chiral edge modes, their hybridization and waveguiding in a nanoribbon geometry, and giant polarization rotation in nanoribbon arrays.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevB.93.041413
