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Localized spoof plasmons in closed textured cavities

Authors :
Pingping Ning
Yongjiu Zhao
Zhuo Li
Bingzheng Xu
Changqing Gu
Zhenyi Niu
Liangliang Liu
Source :
Applied Physics Letters. 104:251601
Publication Year :
2014
Publisher :
AIP Publishing, 2014.

Abstract

Localized spoof plasmons arising with textured closed surfaces have been theoretically studied and experimentally verified, which resemble the localized surface plasmons (LSPs) in the optical regime. In this work, we go one step further and demonstrate that part of the resonance modes in closed textured cavities pertain to spoof localized surface plasmons (spoof-LSPs) modes. We show the existence of spoof LSPs in periodically textured perfect electric conductor circular cavities and make an analogy between these spoof LSPs and the real LSPs in closed metallic cavities with the Drude model in the optical regime. Also, a metamaterial approach is presented to capture the resonant features of these modes.

Details

ISSN :
10773118 and 00036951
Volume :
104
Database :
OpenAIRE
Journal :
Applied Physics Letters
Accession number :
edsair.doi...........7e998ce786b52f7ad77cb15c2f386b0e
Full Text :
https://doi.org/10.1063/1.4885046