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\bibitem{Zhao_etal2015} {\textquotedblleft}\textit{Terahertz plasmon-polariton modes in graphene driven by electric field inside a Fabry-Perot cavity}{\textquotedblright}. Zhao CX, Xu W, Li LL, Zhang C, Peeters FM, Journal of applied physics \textbf{117}, 223104 (2015).   http://doi.org/10.1063/1.4922401

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