Spoof Surface Plasmon Polariton Modes Propagating Along Periodically Corrugated Wires

A I Fernandez-Dominguez; L Martin-Moreno; F J Garcia-Vidal; Steven R Andrews; S A Maier

doi:10.1109/JSTQE.2008.918107

Spoof Surface Plasmon Polariton Modes Propagating Along Periodically Corrugated Wires

A I Fernandez-Dominguez, L Martin-Moreno, F J Garcia-Vidal, Steven R Andrews, S A Maier

Department of Physics

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Abstract

In this paper, we analyze in detail the characteristics of surface electromagnetic modes that can propagate along a periodically corrugated, perfectly conducting wire. We show how these modes, termed spoof surface plasmon polaritons, resemble surface plasmon polaritons supported by metallic wires at optical frequencies. The important point is that the dispersion relation of spoof surface plasmon polaritons is mainly controlled by the geometry of the corrugation. This fact allows the tuning of the properties of these modes via changes in corrugation geometry. Important applications lie in high-confinement waveguiding at far-infrared and microwave frequencies, including the possibility of efficient propagation to the tip of tapered structures for focusing.

Original language	English
Pages (from-to)	1515-1521
Number of pages	7
Journal	IEEE Journal of Selected Topics in Quantum Electronics
Volume	14
Issue number	6
DOIs	https://doi.org/10.1109/JSTQE.2008.918107
Publication status	Published - 2008

Keywords

terahertz radiation
Focusing
plasmonics

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10.1109/JSTQE.2008.918107

dominguez-14-6-2008.pdf
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abstract = "In this paper, we analyze in detail the characteristics of surface electromagnetic modes that can propagate along a periodically corrugated, perfectly conducting wire. We show how these modes, termed spoof surface plasmon polaritons, resemble surface plasmon polaritons supported by metallic wires at optical frequencies. The important point is that the dispersion relation of spoof surface plasmon polaritons is mainly controlled by the geometry of the corrugation. This fact allows the tuning of the properties of these modes via changes in corrugation geometry. Important applications lie in high-confinement waveguiding at far-infrared and microwave frequencies, including the possibility of efficient propagation to the tip of tapered structures for focusing.",

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AU - Martin-Moreno, L

AU - Garcia-Vidal, F J

AU - Andrews, Steven R

AU - Maier, S A

PY - 2008

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N2 - In this paper, we analyze in detail the characteristics of surface electromagnetic modes that can propagate along a periodically corrugated, perfectly conducting wire. We show how these modes, termed spoof surface plasmon polaritons, resemble surface plasmon polaritons supported by metallic wires at optical frequencies. The important point is that the dispersion relation of spoof surface plasmon polaritons is mainly controlled by the geometry of the corrugation. This fact allows the tuning of the properties of these modes via changes in corrugation geometry. Important applications lie in high-confinement waveguiding at far-infrared and microwave frequencies, including the possibility of efficient propagation to the tip of tapered structures for focusing.

AB - In this paper, we analyze in detail the characteristics of surface electromagnetic modes that can propagate along a periodically corrugated, perfectly conducting wire. We show how these modes, termed spoof surface plasmon polaritons, resemble surface plasmon polaritons supported by metallic wires at optical frequencies. The important point is that the dispersion relation of spoof surface plasmon polaritons is mainly controlled by the geometry of the corrugation. This fact allows the tuning of the properties of these modes via changes in corrugation geometry. Important applications lie in high-confinement waveguiding at far-infrared and microwave frequencies, including the possibility of efficient propagation to the tip of tapered structures for focusing.

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KW - Focusing

KW - plasmonics

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Spoof Surface Plasmon Polariton Modes Propagating Along Periodically Corrugated Wires

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