Simple Design of a Tunable Quadruple-Broadband Terahertz Metamaterial Absorber Based on VO<sub>2</sub>

Kwang-Jin Ri; Dae-Song Pak; Chung-Ho Ri

doi:doi:10.11648/j.am.20231204.11

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Simple Design of a Tunable Quadruple-Broadband Terahertz Metamaterial Absorber Based on VO₂

Kwang-Jin Ri^*, Dae-Song Pak, Chung-Ho Ri

Published in Advances in Materials (Volume 12, Issue 4)

Received: 18 October 2023 Accepted: 9 November 2023 Published: 21 November 2023

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Abstract

Tunable multi-broadband terahertz (THz) metamaterial absorbers (MAs) can effectively act as THz amplitude modulators, which are the essential components for the future THz communication systems. Till now, various tunable multi-broadband THz MAs including tunable dual-broadband and triple-broadband absorbers have been investigated. However, there are few researches on tunable quadruple-broadband THz MAs. In this work, a simple design of tunable quadruple-broadband THz MA based on VO₂ is proposed. The proposed absorber possesses four broad absorption bands with absorptivity over 90% in frequency ranges of 0.54-2.30 THz, 3.67-5.33 THz, 6.72-8.4 THz and 9.72-11.47 THz, and the corresponding absorption bandwidths reach 1.76 THz, 1.66 THz, 1.68 THz and 1.75 THz, respectively. Moreover, we can dynamically control the absorptivity of four absorption bands by varying VO₂ conductivity. Thus, the proposed absorber possesses the modulation depths of 79.15%, 49.71%, 33.03% and 21.98% at 1.48 THz, 4.46 THz, 7.45 THz and 10.44 THz, respectively. The physical origin of quadruple-broadband perfect absorption is revealed with aid of electric field distributions at resonant frequencies. We also investigate the effects of incidence angle and polarization angle on the quadruple-broadband perfect absorption. The proposed absorber has broad application prospects in THz imaging, modulating, detecting and sensing owing to its excellent absorption characteristics.

Published in	Advances in Materials (Volume 12, Issue 4)
DOI	10.11648/j.am.20231204.11
Page(s)	45-52
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2023. Published by Science Publishing Group

Keywords

Terahertz, Metamaterial, Quadruple, Tunable, Vanadium Dioxide, Bandwidth

References

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APA Style

Ri, K., Pak, D., Ri, C. (2023). Simple Design of a Tunable Quadruple-Broadband Terahertz Metamaterial Absorber Based on VO2. Advances in Materials, 12(4), 45-52. https://doi.org/10.11648/j.am.20231204.11

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ACS Style

Ri, K.; Pak, D.; Ri, C. Simple Design of a Tunable Quadruple-Broadband Terahertz Metamaterial Absorber Based on VO2. Adv. Mater. 2023, 12(4), 45-52. doi: 10.11648/j.am.20231204.11

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AMA Style

Ri K, Pak D, Ri C. Simple Design of a Tunable Quadruple-Broadband Terahertz Metamaterial Absorber Based on VO2. Adv Mater. 2023;12(4):45-52. doi: 10.11648/j.am.20231204.11

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@article{10.11648/j.am.20231204.11,
  author = {Kwang-Jin Ri and Dae-Song Pak and Chung-Ho Ri},
  title = {Simple Design of a Tunable Quadruple-Broadband Terahertz Metamaterial Absorber Based on VO2},
  journal = {Advances in Materials},
  volume = {12},
  number = {4},
  pages = {45-52},
  doi = {10.11648/j.am.20231204.11},
  url = {https://doi.org/10.11648/j.am.20231204.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.am.20231204.11},
  abstract = {Tunable multi-broadband terahertz (THz) metamaterial absorbers (MAs) can effectively act as THz amplitude modulators, which are the essential components for the future THz communication systems. Till now, various tunable multi-broadband THz MAs including tunable dual-broadband and triple-broadband absorbers have been investigated. However, there are few researches on tunable quadruple-broadband THz MAs. In this work, a simple design of tunable quadruple-broadband THz MA based on VO2 is proposed. The proposed absorber possesses four broad absorption bands with absorptivity over 90% in frequency ranges of 0.54-2.30 THz, 3.67-5.33 THz, 6.72-8.4 THz and 9.72-11.47 THz, and the corresponding absorption bandwidths reach 1.76 THz, 1.66 THz, 1.68 THz and 1.75 THz, respectively. Moreover, we can dynamically control the absorptivity of four absorption bands by varying VO2 conductivity. Thus, the proposed absorber possesses the modulation depths of 79.15%, 49.71%, 33.03% and 21.98% at 1.48 THz, 4.46 THz, 7.45 THz and 10.44 THz, respectively. The physical origin of quadruple-broadband perfect absorption is revealed with aid of electric field distributions at resonant frequencies. We also investigate the effects of incidence angle and polarization angle on the quadruple-broadband perfect absorption. The proposed absorber has broad application prospects in THz imaging, modulating, detecting and sensing owing to its excellent absorption characteristics.
},
 year = {2023}
}

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TY  - JOUR
T1  - Simple Design of a Tunable Quadruple-Broadband Terahertz Metamaterial Absorber Based on VO2
AU  - Kwang-Jin Ri
AU  - Dae-Song Pak
AU  - Chung-Ho Ri
Y1  - 2023/11/21
PY  - 2023
N1  - https://doi.org/10.11648/j.am.20231204.11
DO  - 10.11648/j.am.20231204.11
T2  - Advances in Materials
JF  - Advances in Materials
JO  - Advances in Materials
SP  - 45
EP  - 52
PB  - Science Publishing Group
SN  - 2327-252X
UR  - https://doi.org/10.11648/j.am.20231204.11
AB  - Tunable multi-broadband terahertz (THz) metamaterial absorbers (MAs) can effectively act as THz amplitude modulators, which are the essential components for the future THz communication systems. Till now, various tunable multi-broadband THz MAs including tunable dual-broadband and triple-broadband absorbers have been investigated. However, there are few researches on tunable quadruple-broadband THz MAs. In this work, a simple design of tunable quadruple-broadband THz MA based on VO2 is proposed. The proposed absorber possesses four broad absorption bands with absorptivity over 90% in frequency ranges of 0.54-2.30 THz, 3.67-5.33 THz, 6.72-8.4 THz and 9.72-11.47 THz, and the corresponding absorption bandwidths reach 1.76 THz, 1.66 THz, 1.68 THz and 1.75 THz, respectively. Moreover, we can dynamically control the absorptivity of four absorption bands by varying VO2 conductivity. Thus, the proposed absorber possesses the modulation depths of 79.15%, 49.71%, 33.03% and 21.98% at 1.48 THz, 4.46 THz, 7.45 THz and 10.44 THz, respectively. The physical origin of quadruple-broadband perfect absorption is revealed with aid of electric field distributions at resonant frequencies. We also investigate the effects of incidence angle and polarization angle on the quadruple-broadband perfect absorption. The proposed absorber has broad application prospects in THz imaging, modulating, detecting and sensing owing to its excellent absorption characteristics.

VL  - 12
IS  - 4
ER  -

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Author Information

Kwang-Jin Ri

Department of Physics, University of Sciences, Pyongyang, Democratic People’s Republic of Korea

Contact Email
Dae-Song Pak

Department of Physics, Kim Hyong Jik University of Education, Pyongyang, Democratic People’s Republic of Korea
Chung-Ho Ri

Department of Physics, University of Sciences, Pyongyang, Democratic People’s Republic of Korea

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APA Style

Ri, K., Pak, D., Ri, C. (2023). Simple Design of a Tunable Quadruple-Broadband Terahertz Metamaterial Absorber Based on VO2. Advances in Materials, 12(4), 45-52. https://doi.org/10.11648/j.am.20231204.11

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ACS Style

Ri, K.; Pak, D.; Ri, C. Simple Design of a Tunable Quadruple-Broadband Terahertz Metamaterial Absorber Based on VO2. Adv. Mater. 2023, 12(4), 45-52. doi: 10.11648/j.am.20231204.11

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AMA Style

Ri K, Pak D, Ri C. Simple Design of a Tunable Quadruple-Broadband Terahertz Metamaterial Absorber Based on VO2. Adv Mater. 2023;12(4):45-52. doi: 10.11648/j.am.20231204.11

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@article{10.11648/j.am.20231204.11,
  author = {Kwang-Jin Ri and Dae-Song Pak and Chung-Ho Ri},
  title = {Simple Design of a Tunable Quadruple-Broadband Terahertz Metamaterial Absorber Based on VO2},
  journal = {Advances in Materials},
  volume = {12},
  number = {4},
  pages = {45-52},
  doi = {10.11648/j.am.20231204.11},
  url = {https://doi.org/10.11648/j.am.20231204.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.am.20231204.11},
  abstract = {Tunable multi-broadband terahertz (THz) metamaterial absorbers (MAs) can effectively act as THz amplitude modulators, which are the essential components for the future THz communication systems. Till now, various tunable multi-broadband THz MAs including tunable dual-broadband and triple-broadband absorbers have been investigated. However, there are few researches on tunable quadruple-broadband THz MAs. In this work, a simple design of tunable quadruple-broadband THz MA based on VO2 is proposed. The proposed absorber possesses four broad absorption bands with absorptivity over 90% in frequency ranges of 0.54-2.30 THz, 3.67-5.33 THz, 6.72-8.4 THz and 9.72-11.47 THz, and the corresponding absorption bandwidths reach 1.76 THz, 1.66 THz, 1.68 THz and 1.75 THz, respectively. Moreover, we can dynamically control the absorptivity of four absorption bands by varying VO2 conductivity. Thus, the proposed absorber possesses the modulation depths of 79.15%, 49.71%, 33.03% and 21.98% at 1.48 THz, 4.46 THz, 7.45 THz and 10.44 THz, respectively. The physical origin of quadruple-broadband perfect absorption is revealed with aid of electric field distributions at resonant frequencies. We also investigate the effects of incidence angle and polarization angle on the quadruple-broadband perfect absorption. The proposed absorber has broad application prospects in THz imaging, modulating, detecting and sensing owing to its excellent absorption characteristics.
},
 year = {2023}
}

Copy | Download

TY  - JOUR
T1  - Simple Design of a Tunable Quadruple-Broadband Terahertz Metamaterial Absorber Based on VO2
AU  - Kwang-Jin Ri
AU  - Dae-Song Pak
AU  - Chung-Ho Ri
Y1  - 2023/11/21
PY  - 2023
N1  - https://doi.org/10.11648/j.am.20231204.11
DO  - 10.11648/j.am.20231204.11
T2  - Advances in Materials
JF  - Advances in Materials
JO  - Advances in Materials
SP  - 45
EP  - 52
PB  - Science Publishing Group
SN  - 2327-252X
UR  - https://doi.org/10.11648/j.am.20231204.11
AB  - Tunable multi-broadband terahertz (THz) metamaterial absorbers (MAs) can effectively act as THz amplitude modulators, which are the essential components for the future THz communication systems. Till now, various tunable multi-broadband THz MAs including tunable dual-broadband and triple-broadband absorbers have been investigated. However, there are few researches on tunable quadruple-broadband THz MAs. In this work, a simple design of tunable quadruple-broadband THz MA based on VO2 is proposed. The proposed absorber possesses four broad absorption bands with absorptivity over 90% in frequency ranges of 0.54-2.30 THz, 3.67-5.33 THz, 6.72-8.4 THz and 9.72-11.47 THz, and the corresponding absorption bandwidths reach 1.76 THz, 1.66 THz, 1.68 THz and 1.75 THz, respectively. Moreover, we can dynamically control the absorptivity of four absorption bands by varying VO2 conductivity. Thus, the proposed absorber possesses the modulation depths of 79.15%, 49.71%, 33.03% and 21.98% at 1.48 THz, 4.46 THz, 7.45 THz and 10.44 THz, respectively. The physical origin of quadruple-broadband perfect absorption is revealed with aid of electric field distributions at resonant frequencies. We also investigate the effects of incidence angle and polarization angle on the quadruple-broadband perfect absorption. The proposed absorber has broad application prospects in THz imaging, modulating, detecting and sensing owing to its excellent absorption characteristics.

VL  - 12
IS  - 4
ER  -

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