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

Van Huynh Tran, Xuan Khuyen Bui, Dinh Lam Vu, Son Tung Bui, Thi Hong Hiep Le, Thanh Tung Nguyen
Author affiliations

Authors

  • Van Huynh Tran
  • Xuan Khuyen Bui
  • Dinh Lam Vu
  • Son Tung Bui
  • Thi Hong Hiep Le
  • Thanh Tung Nguyen

DOI:

https://doi.org/10.15625/0868-3166/30/4/15081

Keywords:

metamaterial absorbers, multi-band, THz frequencies

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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Published

20-10-2020

How to Cite

[1]
V. H. Tran, X. K. Bui, D. L. Vu, S. T. Bui, T. H. H. Le and T. T. Nguyen, Experimental Verification of a TH\(\text{z}\) Multi-band Metamaterial Absorber, Comm. Phys. 30 (2020) 311. DOI: https://doi.org/10.15625/0868-3166/30/4/15081.

Issue

Vol. 30 No. 4 (2020)

Section

Papers

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Received 20-05-2020
Accepted 07-07-2020
Published 20-10-2020