期刊
PHYSICAL REVIEW LETTERS
卷 114, 期 23, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.114.233901
关键词
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资金
- Air Force Office of Scientific Research Grant [FA9550-13-1-0204]
- Welch foundation [F-1802]
- National Science Foundation [ECCS-1406235]
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [1406235] Funding Source: National Science Foundation
We explore the unusual electromagnetic response of ultrathin anisotropic delta-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.
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