1. Topological interface modes in graphene multilayer arrays.
- Author
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Wang, Feng, Ke, Shaolin, Qin, Chengzhi, Wang, Bing, Long, Hua, Wang, Kai, and Lu, Peixiang
- Subjects
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INTERFACES (Physical sciences) , *GRAPHENE oxide , *POLARITONS , *PLASMONICS , *OPTICAL switching - Abstract
We investigate the topological interface modes of surface plasmon polaritons in a multilayer system composed of graphene waveguide arrays. The topological interface modes emerge when two topologically distinct graphene multilayer arrays are connected. In such multilayer system, the non-trivial topological interface modes and trivial modes coexist. By tuning the configuration of the graphene multilayer arrays, the associated non-trivial interface modes present robust against structural disorder. The total number of topological modes is related to that of graphene layers in a unit cell of the graphene multilayer array. The results provide a new paradigm for topologically protected plasmonics in the graphene multilayer arrays. The study suggests a promising approach to realize light transport and optical switching on a deep-subwavelength scale. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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