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Magnetic Fano resonances by design in symmetry broken THz meta-foils.

ABSTRACT: Magnetic Fano resonances in there-dimensional symmetry broken meta-foils at THz frequencies are theoretically and experimentally studied. Sharp Fano resonances occur due to the interference between different resonances and can be designed by choosing geometric parameters of the meta-foil. At the Fano resonances, the meta-foil supports antisymmetric modes, whereas, at the main resonance, only a symmetric mode exists. The meta-foil is left-handed at the Fano resonances and shows sharp peaks of the real part of the refractive index in transmission with small effective losses opening a way to very sensitive high-speed sensing of dielectric changes in the surrounding media and of mechanical configuration.

SUBMITTER: Wu J

PROVIDER: S-EPMC5288773 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature

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Magnetic Fano resonances by design in symmetry broken THz meta-foils.

Wu Jianfeng J Moser Herbert O HO Li Rujiang R Yang Yihao Y Jing Liqiao L Chen Hongsheng H Breese Mark B H MB

Scientific reports 20170202

Magnetic Fano resonances in there-dimensional symmetry broken meta-foils at THz frequencies are theoretically and experimentally studied. Sharp Fano resonances occur due to the interference between different resonances and can be designed by choosing geometric parameters of the meta-foil. At the Fano resonances, the meta-foil supports antisymmetric modes, whereas, at the main resonance, only a symmetric mode exists. The meta-foil is left-handed at the Fano resonances and shows sharp peaks of the ...[more]

PMID: 28150797

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