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Choi, EunMi
THz Vacuum Electronics and Electrodynamics
Research Interests
  • High power millimeter-wave/THz wave, vacuum electronics, plasma breakdown, electron beams, electromagnetics, microwave/RF engineering

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Observation of trapped-modes excited in double-layered symmetric electric ring resonators

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Title
Observation of trapped-modes excited in double-layered symmetric electric ring resonators
Author
Seo, Bo-jeongKim, KwanghoonKim, Sung GugKim, AreunCho, HyungJoonChoi, EunMi
Keywords
Dielectric insert; Experimental observation; Experimental verification; Metamaterial structures; Ring resonator; Three dimensions; Trapped modes; Unit cells
Issue Date
201206
Publisher
AMER INST PHYSICS
Citation
JOURNAL OF APPLIED PHYSICS, v.111, no.11, pp.1 - 5
Abstract
We report on experimental observations of trapped-mode resonances in double-layered symmetric electric ring resonators separated by dielectric inserts. The resulting metamaterial introduces trapped-mode resonances that were thought to be produced only by asymmetric metamaterial unit cells. Experimental verification of the newly observed trapped modes, along with the analysis of the stacked metamaterial geometry reported in this paper, opens an alternative way of forming sharp resonances in a symmetric metamaterial structure extended in all three dimensions.
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DOI
http://dx.doi.org/10.1063/1.4721993
ISSN
0021-8979
Appears in Collections:
SNS_Journal Papers
SLS_Journal Papers
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