Optical metamaterial absorber based on leaf-shaped cells

  • Zhu W
  • Zhao X
  • Gong B
 et al. 
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Abstract

We present the model of an infrared metamaterial absorber composed of metallic leaf-shaped cells, dielectric substrate, and continuous metallic film. Numerical simulation confirms an absorptivity of 99.3% at the infrared frequency of 126.7 THz with this metamaterial model. The proposed metamaterial absorber could be fabricated with an electrochemical deposition technique. Our simulated results show the absorption feature of this metamaterial absorber could be well manipulated with different incident angles and radiation modes. The optical metamaterial absorber proposed in this paper has potential applications such as infrared imaging devices, thermal bolometers, wavelength-selective radiators, and optical bistable switches.

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Authors

  • Weiren Zhu

  • Xiaopeng Zhao

  • Boyi Gong

  • Longhai Liu

  • Bin Su

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