Chiral plasmon in gapped Dirac systems

Author(s)
Kumar, Anshuman; Nemilentsau, Andrei; Fung, Kin Hung; Hanson, George; Low, Tony; ... Show more
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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.
Date issued
2016-01
URI
http://hdl.handle.net/1721.1/100971
Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
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
ISSN
1098-0121
1550-235X
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