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dc.contributor.authorChong, Yi Dongen
dc.contributor.authorLiu, Fanglien
dc.contributor.authorQian, Chengen
dc.identifier.citationLiu, F., Qian, C., & Chong, Y. D. (2015). Directional excitation of graphene surface plasmons. Optics express, 23(3), 2383-2391.en
dc.description.abstractWe propose a scheme to directionally couple light into graphene plasmons by placing a graphene sheet on a magneto-optical substrate. When a magnetic field is applied parallel to the surface, the graphene plasmon dispersion relation becomes asymmetric in the forward and backward directions. It is possible to achieve unidirectional excitation of graphene plasmons with normally incident illumination by applying a grating to the substrate. The directionality can be actively controlled by electrically gating the graphene, or by varying the magnetic bias. This scheme may have applications in graphene-based opto-electronics and sensing.en
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en
dc.description.sponsorshipMOE (Min. of Education, S’pore)en
dc.format.extent9 p.en
dc.relation.ispartofseriesOptics expressen
dc.rights© 2015 Optical Society of America. This paper was published in Optics Express and is made available as an electronic reprint (preprint) with permission of Optical Society of America. The published version is available at: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.en
dc.subjectDRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonicsen
dc.titleDirectional excitation of graphene surface plasmonsen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen
dc.contributor.schoolSchool of Computer Engineeringen
dc.description.versionPublished versionen
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