Vol. 30 No. 4 (2020)
Papers

Experimental Verification of a TH\(\text{z}\) Multi-band Metamaterial Absorber

Cover Vol 30 No 4 December 2020

Published 20-10-2020

Keywords

  • metamaterial absorbers,
  • multi-band,
  • THz frequencies

How to Cite

Tran, V. H., Bui, X. K., Vu, D. L., Bui, S. T., Le, T. H. H., & Nguyen, T. T. (2020). Experimental Verification of a TH\(\text{z}\) Multi-band Metamaterial Absorber. Communications in Physics, 30(4), 311. https://doi.org/10.15625/0868-3166/30/4/15081

Abstract

Multi-band metamaterial absorbers have been of great interest owing to their potentials for a wide range of communicating, sensing, imaging, and energy harvesting applications. In this work, we experimentally investigate a four-band metamaterial absorber operating at THz frequencies. The metamaterials are fabricated using the maskless UV photolithography and e-beam evaporation techniques. The absorption spectra of the proposed absorber are measured using the micro-Fourier transformed infrared spectroscopy. It was demonstrated that multi-band absorption behavior originates from different individual metamaterial resonators. The thickness of the dielectric spacer plays a key role in optimizing the absorption performance, in line with the predicted results on single-band THz absorbers.

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