Exceptional Points and Asymmetric Mode Switching in Plasmonic Waveguides

We investigate the exceptional points (EPs) in a non-Hermitian system composed of a pair of graphene sheets with different losses. There are two surface plasmon polaritons (SPPs) modes in the graphene waveguide. By varying the distance between two graphene sheets and chemical potential of graphene,...

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Veröffentlicht in:	Journal of lightwave technology 2016-11, Vol.34 (22), p.5258-5262
Hauptverfasser:	Ke, Shaolin, Wang, Bing, Qin, Chengzhi, Long, Hua, Wang, Kai, Lu, Peixiang
Format:	Artikel
Sprache:	eng
Schlagworte:	Adiabatic Chemicals Eigenvalues and eigenfunctions Exceptional point geometric phase Graphene mode switching Optical waveguides Propagation constant Propagation losses surface plasmon polaritons
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