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Low-loss metamaterial electromagnetically induced transparency based on electric toroidal dipolar response

Authors :
Shaobin Liu
Shen-Yun Wang
Hua Yang
Hai-Ming Li
Si-yuan Liu
Haifeng Zhang
Guo-Wen Ding
Yu Zhiyang
Source :
Applied Physics Letters. 106:083511
Publication Year :
2015
Publisher :
AIP Publishing, 2015.

Abstract

In this paper, a low-loss and high transmission analogy of electromagnetically induced transparency based on electric toroidal dipolar response is numerically and experimentally demonstrated. It is obtained by the excitation of the low-loss electric toroidal dipolar response, which confines the magnetic field inside a dielectric substrate with toroidal geometry. The metamaterial electromagnetically induced transparency (EIT) structure is composed of the cut wire and asymmetric split-ring resonators. The transmission level is as high as 0.88, and the radiation loss is greatly suppressed, which can be proved by the surface currents distributions, the magnetic field distributions, and the imaginary parts of the effective permeability and permittivity. It offers an effective way to produce low-loss and high transmission metamaterial EIT.

Details

ISSN :
10773118 and 00036951
Volume :
106
Database :
OpenAIRE
Journal :
Applied Physics Letters
Accession number :
edsair.doi...........bb138086f52b7411fbc80f305535d263
Full Text :
https://doi.org/10.1063/1.4913888