Hyperbolic Plasmons and Topological Transitions over Uniaxial Metasurfaces

Juan Sebastian Gomez Diaz, Mykhailo Tymchenko, Andrea Alù

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Abstract

We explore the unusual electromagnetic response of ultrathin anisotropic σ-near-zero uniaxial metasurfaces, demonstrating extreme topological transitions - from closed elliptical to open hyperbolic - for surface plasmon propagation, associated with a dramatic tailoring of the local density of states. The proposed metasurfaces may be implemented using nanostructured graphene monolayers and open unprecedented venues for extreme light confinement and unusual propagation and guidance, combined with large tunability via electric bias.

Original languageEnglish (US)
Article number233901
JournalPhysical Review Letters
Volume114
Issue number23
DOIs
StatePublished - Jun 11 2015
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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