Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/99455
Title: Unidirectional surface plasmons in nonreciprocal graphene
Authors: Lin, Xiao
Xu, Yang
Zhang, Baile
Hao, Ran
Chen, Hongsheng
Li, Erping
Keywords: DRNTU::Science::Physics::Optics and light
DRNTU::Engineering::Materials::Energy materials
Issue Date: 2013
Source: Lin, X., Xu, Y., Zhang, B., Hao, R., Chen, H., & Li, E. (2013). Unidirectional surface plasmons in nonreciprocal graphene. New Journal of Physics, 15(11), 113003.
Series/Report no.: New journal of physics
Abstract: We demonstrate theoretically the existence of unidirectional surface plasmons in the nonreciprocal graphene-based gyrotropic interfaces. We show that a unidirectional frequency range is raised under a static external magnetic field where only one propagating direction is allowed for the surface plasmons mode. By efficiently controlling the chemical potential of graphene, the unidirectional working frequency can be continuously tunable from THz to near-infrared and even visible. Particularly, the unidirectional frequency bandwidth can be 1– 2 orders of magnitude larger than that in metal under the same magnetic field, which arises from the superiority of extremely small effective electron mass in graphene. Based on our theoretical analysis, two tunable graphene-based directional devices are proposed, showing the appealing properties of nonreciprocal graphene in the nonreciprocal optical devices design.
URI: https://hdl.handle.net/10356/99455
http://hdl.handle.net/10220/17639
ISSN: 1367-2630
DOI: http://dx.doi.org/10.1088/1367-2630/15/11/113003
Rights: Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI [http://dx.doi.org/10.1088/1367-2630/15/11/113003].
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