Topological effect in plasmonic system

Fan Yang; Shaojie Ma; Kun Ding; Shuang Zhang; John Pendry

doi:10.1117/12.2568801

20 August 2020 Topological effect in plasmonic system

Fan Yang, Shaojie Ma, Kun Ding, Shuang Zhang, John Pendry

Proceedings Volume 11460, Metamaterials, Metadevices, and Metasystems 2020; 114600C (2020) https://doi.org/10.1117/12.2568801
Event: SPIE Nanoscience + Engineering, 2020, Online Only

Abstract

In this work, we extend the scope of the metallic and dielectric states by treating a pure metal or dielectric as the limiting case of a metal-dielectric layered metamaterial. The metamaterial with metal filling ratio larger than one-half shares the same topological invariant as a pure metal and thus exhibits some metallic behaviors. In contrast, the dielectric-rich metamaterial and a pure dielectric are topologically equivalent and display dielectric properties. This new understanding gives surface plasmon polariton (SPP) at a metal/dielectric interface a new physical meaning: the limiting case of a topological edge state. Finally, a complex structure also supports hidden topological effects if it is transformed from a layered metamaterial possessing an edge state.

Conference Presentation

Citation Download Citation

Fan Yang, Shaojie Ma, Kun Ding, Shuang Zhang, and John Pendry "Topological effect in plasmonic system", Proc. SPIE 11460, Metamaterials, Metadevices, and Metasystems 2020, 114600C (20 August 2020); https://doi.org/10.1117/12.2568801

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