• Corpus ID: 238583662

Topological edge states at singular points in non-Hermitian plasmonic systems

  title={Topological edge states at singular points in non-Hermitian plasmonic systems},
  author={Yin Huang and Yuecheng Shen and Georgios Veronis},
We introduce non-Hermitian plasmonic waveguide-cavity systems with topological edge states (TESs) at singular points. The compound unit cells of the structures consist of metaldielectric-metal (MDM) stub resonators side-coupled to an MDM waveguide. We show that we can realize both a TES and an exceptional point at the same frequency when a proper amount of loss is introduced into a finite three-unit-cell structure. We also show that the finite structure can exhibit both a TES and a spectral… 

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