dc.contributor.authorTao, Jin
dc.contributor.authorDong, Zhaogang
dc.contributor.authorYang, Joel K. W.
dc.contributor.authorWang, Qi Jie
dc.identifier.citationTao, 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.en_US
dc.description.abstractGraphene 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.en_US
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en_US
dc.description.sponsorshipASTAR (Agency for Sci., Tech. and Research, S’pore)en_US
dc.description.sponsorshipMOE (Min. of Education, S’pore)en_US
dc.format.extent12 p.en_US
dc.relation.ispartofseriesOptics Expressen_US
dc.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: [http://dx.doi.org/10.1364/OE.23.007809].en_US
dc.subjectIntegrated optics devicesen_US
dc.subjectSurface plasmonsen_US
dc.subjectNonlinear opticsen_US
dc.titlePlasmon excitation on flat graphene by s-polarized beams using four-wave mixingen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US
dc.description.versionAccepted versionen_US

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