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Proceedings Paper

Theory of spoof plasmons in real metals
Author(s): Anastasia Rusina; Maxim Durach; Mark I. Stockman
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Paper Abstract

In this Letter we develop a theory of spoof plasmons propagating on real metals perforated with planar periodic grooves. Deviation from the spoof plasmons on perfect conductor due to finite skin depth has been analytically described. This allowed us to investigate important propagation characteristics of spoof plasmons such as quality factor and propagation length as the function of the geometrical parameters of the structure. We have also considered THz field confinement by adiabatic increase of the depth of the grooves. It is shown that the finite skin depth limits the propagation length of spoof plasmons as well as a possibility to localize THz field. Geometrical parameters of the structure are found which provide optimal guiding and localization of THz energy.

Paper Details

Date Published: 10 September 2010
PDF: 6 pages
Proc. SPIE 7757, Plasmonics: Metallic Nanostructures and Their Optical Properties VIII, 77572R (10 September 2010); doi: 10.1117/12.859904
Show Author Affiliations
Anastasia Rusina, Georgia State Univ. (United States)
Maxim Durach, Georgia State Univ. (United States)
Mark I. Stockman, Georgia State Univ. (United States)


Published in SPIE Proceedings Vol. 7757:
Plasmonics: Metallic Nanostructures and Their Optical Properties VIII
Mark I. Stockman, Editor(s)

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