Near-perfect conversion of a propagating plane wave into a surface wave using metasurfaces

In this paper theoretical and numerical studies of perfect/nearly perfect conversion of a plane wave into a surface wave are presented. The problem of determining the electromagnetic properties of an inhomogeneous lossless boundary which would fully transform an incident plane wave into a surface wa...

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Bibliographic Details
Published in:Physical review. B 2018-03, Vol.97 (11), Article 115447
Main Authors: Tcvetkova, S. N., Kwon, D.-H., Díaz-Rubio, A., Tretyakov, S. A.
Format: Article
Language:English
Subjects:
Conversion
Electromagnetic properties
Energy conservation
Energy conservation law
Leaky waves
Metasurfaces
Plane waves
Surface waves
Wave propagation
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Summary:In this paper theoretical and numerical studies of perfect/nearly perfect conversion of a plane wave into a surface wave are presented. The problem of determining the electromagnetic properties of an inhomogeneous lossless boundary which would fully transform an incident plane wave into a surface wave propagating along the boundary is considered. An approximate field solution which produces a slowly growing surface wave and satisfies the energy conservation law is discussed and numerically demonstrated. The results of the study are of great importance for the future development of such devices as perfect leaky-wave antennas and can potentially lead to many novel
ISSN:2469-9950
2469-9969
DOI:10.1103/PhysRevB.97.115447