Waveguiding by a locally resonant metasurface
Author(s)
Gusev, V. E.; Maznev, Alexei
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Dispersion relations for acoustic and electromagnetic waves guided by resonant inclusions located at the surface of an elastic solid or an interface between two media are analyzed theoretically within the effective medium approximation. Oscillators on the surface of an elastic half-space are shown to give rise to a Love-type surface acoustic wave only existing below the oscillator frequency. A simple dispersion relation governing this system is shown to also hold for electromagnetic waves guided by Lorentz oscillators at an interface between two media with equal dielectric constants. Different kinds of behavior of the dispersion of the resonantly guided mode are identified, depending on whether the bulk wave in the absence of oscillators can propagate along the surface or interface.
Date issued
2015-09Department
Massachusetts Institute of Technology. Department of ChemistryJournal
Physical Review B
Publisher
American Physical Society
Citation
Maznev, A. A., and V. E. Gusev. "Waveguiding by a locally resonant metasurface." Phys. Rev. B 92, 115422 (September 2015). © 2015 American Physical Society
Version: Final published version
ISSN
1098-0121
1550-235X