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Coupled Resonance Enhanced Modulation for a Graphene-Loaded Metamaterial Absorber.

ABSTRACT: A graphene-loaded metamaterial absorber is investigated in the mid-infrared region. The light-graphene interaction is greatly enhanced by virtue of the coupled resonance through a cross-shaped slot. The absorption peaks show a significant blueshift with increasing Fermi level, enabling a wide range of tunability for the absorber. A simple circuit model well explains and predicts this modulation behavior. Our proposal may find applications in a variety of areas such as switching, sensing, modulating, and biochemical detecting.

SUBMITTER: Xiao D

PROVIDER: S-EPMC6342740 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature

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Coupled Resonance Enhanced Modulation for a Graphene-Loaded Metamaterial Absorber.

Xiao Dong D Liu Qiang Q Lei Lei L Sun Yiling Y Ouyang Zhengbiao Z Tao Keyu K

Nanoscale research letters 20190122 1

A graphene-loaded metamaterial absorber is investigated in the mid-infrared region. The light-graphene interaction is greatly enhanced by virtue of the coupled resonance through a cross-shaped slot. The absorption peaks show a significant blueshift with increasing Fermi level, enabling a wide range of tunability for the absorber. A simple circuit model well explains and predicts this modulation behavior. Our proposal may find applications in a variety of areas such as switching, sensing, modulat ...[more]

PMID: 30671732

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