Hybrid waves localized at hyperbolic metasurfaces
Date
2015
Authors
Yermakov, O.Y.
Ovcharenko, A.I.
Song, M-Y
Bogdanov, A.A.
Iorsh, Ivan
Kivshar, Yuri
Journal Title
Journal ISSN
Volume Title
Publisher
American Physical Society
Abstract
We reveal the existence of a type of surface electromagnetic wave supported by hyperbolic metasurfaces,
describedbyaconductivitytensorwithanindefinitesignature.Wedemonstratethatthespectrumofthehyperbolic
metasurface waves consists of two branches corresponding to hybrid transverse electric–transverse magnetic
waves with a polarization that varies from linear to elliptic or circular depending on the wave frequency and
propagation direction. The shape of the equal-frequency contours drastically depends on the frequency and
changes from the elliptical to hyperbolic—a topological transition takes place. We derive asymptotic formulas
describing the losses of the surface waves for capacitive, inductive, and hyperbolic regimes of the metasurface.
We analyze numerically the generation of surface waves by a point electric dipole placed in the vicinity of the
metasurface with numerical simulations, and also reveal wave-front peculiarities in strong anisotropic hyperbolic
and σ-near-zero regimes of the metasurface.
Description
Keywords
Citation
Collections
Source
Physical Review B: Condensed Matter and Materials
Type
Journal article
Book Title
Entity type
Access Statement
Open Access
License Rights
Restricted until
Downloads
File
Description