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Title: Plasmon excitation on flat graphene by s-polarized beams using four-wave mixing
Authors: Tao, Jin
Dong, Zhaogang
Yang, Joel K. W.
Wang, Qi Jie
Keywords: Integrated optics devices
Nonlinear optics
Surface plasmons
Issue Date: 2015
Source: Tao, J., Dong, Z., Yang, J. K. W., & Wang, Q. J. (2015). Plasmon excitation on flat graphene by s-polarized beams using four-wave mixing. Optics Express, 23(6), 7809-7819.
Series/Report no.: Optics Express
Abstract: Graphene plasmons have received significant attention recently due to its attractive properties such as high spatial confinement and tunability. However, exciting plasmons on graphene effectively still remains a challenge owing to the large wave-vector mismatch between the optical beam in air and graphene plasmon. In this paper, we present a novel scheme capable of exciting graphene surface plasmons (GSPs) on a flat suspended graphene by using only s-polarized optical beams through four-wave mixing (FWM) process, where the GSPs fields were derived analytically based on the Green's function analysis, under the basis of momentum conservation. By incorporating the merits of nonlinear optics, the presented scheme avoids any patterning of either graphene or substrate. We believe that the proposed scheme potentially paves the way towards an efficient pure optical excitation, switching and modulation of GSPs for realizing graphene-based nano-photonic and optoelectronic integrated circuits.
ISSN: 1094-4087
DOI: 10.1364/OE.23.007809
Schools: School of Electrical and Electronic Engineering 
School of Physical and Mathematical Sciences 
Rights: © 2015 Optical Society of America. This is the author created version of a work that has been peer reviewed and accepted for publication by Optics Express, Optical Society of America. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles
SPMS Journal Articles

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