Shielding at a distance due to anomalous resonance

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A cylindrical plasmonic structure with a concentric core exhibits an anomalous localized resonance which results in cloaking effects. Here we show that if the structure has an eccentric core, a new kind of shielding effect can happen. In contrast to conventional shielding devices, our proposed structure can block the effect of external electrical sources, even in a region which is not enclosed by any conducting materials. In fact, the shielded region is located at a distance from the device. Weanalytically investigate this phenomenon by using the Mobius transformation, through which an eccentric annulus is transformed into a concentric one. We also present several numerical examples.
Publisher
IOP PUBLISHING LTD
Issue Date
2017-03
Language
English
Article Type
Article
Keywords

DOUBLY COMPLEMENTARY MEDIA; QUASI-STATIC REGIME; LOCALIZED RESONANCE; CLOAKING

Citation

NEW JOURNAL OF PHYSICS, v.19

ISSN
1367-2630
DOI
10.1088/1367-2630/aa6278
URI
http://hdl.handle.net/10203/223502
Appears in Collection
MA-Journal Papers(저널논문)
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