Terahertz Absorber With Reconfigurable Bandwidth Based on Isotropic Vanadium Dioxide Metasurfaces
The design of a broadband tunable absorber is proposed based on a thin vanadium dioxide metasurface, which is composed of a simple array of vanadium dioxide and a bottom gold film. When the conductivity of vanadium dioxide is equal to <inline-formula><tex-math notation="LaTeX">...
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IEEE
2019-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/8649647/ |
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| author | Zhengyong Song Maoliang Wei Zhisheng Wang Guoxiong Cai Yineng Liu Yuanguo Zhou |
| author_facet | Zhengyong Song Maoliang Wei Zhisheng Wang Guoxiong Cai Yineng Liu Yuanguo Zhou |
| author_sort | Zhengyong Song |
| collection | DOAJ |
| description | The design of a broadband tunable absorber is proposed based on a thin vanadium dioxide metasurface, which is composed of a simple array of vanadium dioxide and a bottom gold film. When the conductivity of vanadium dioxide is equal to <inline-formula><tex-math notation="LaTeX">$\text{2000}\ {\Omega ^{ - 1}}{\text{cm}^{ - 1}}$</tex-math></inline-formula>, simulated absorptance exceeds 90% with 71% bandwidth from 0.47 to 0.99 THz and full width at half maximum is 98% from 0.354 to 1.036 THz with center frequency of 0.695 THz. Simulated results show that absorptance peak can be tuned from 5% to 100% when the conductivity changes continually from <inline-formula><tex-math notation="LaTeX">$\text{10}\ {\Omega ^{ - 1}}{\text{cm}^{ - 1}}$</tex-math></inline-formula> to <inline-formula><tex-math notation="LaTeX">$\text{2000}\ {\Omega ^{ - 1}}{\text{cm}^{ - 1}}$</tex-math></inline-formula>. The designed absorber may have useful applications in terahertz spectrum such as energy harvesting, thermal emitter, and sensing. |
| format | Article |
| id | doaj-art-56d788402f0f457ca1deb2bc3d48899a |
| institution | Matheson Library |
| issn | 1943-0655 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-56d788402f0f457ca1deb2bc3d48899a2025-07-01T23:41:24ZengIEEEIEEE Photonics Journal1943-06552019-01-011121710.1109/JPHOT.2019.28989818649647Terahertz Absorber With Reconfigurable Bandwidth Based on Isotropic Vanadium Dioxide MetasurfacesZhengyong Song0https://orcid.org/0000-0002-3575-3243Maoliang Wei1Zhisheng Wang2Guoxiong Cai3https://orcid.org/0000-0002-3660-1559Yineng Liu4Yuanguo Zhou5Department of Electronic Science, Institute of Electromagnetics and Acoustics, Xiamen University, Xiamen, ChinaDepartment of Electronic Science, Institute of Electromagnetics and Acoustics, Xiamen University, Xiamen, ChinaDepartment of Electronic Science, Institute of Electromagnetics and Acoustics, Xiamen University, Xiamen, ChinaDepartment of Electronic Science, Institute of Electromagnetics and Acoustics, Xiamen University, Xiamen, ChinaDepartment of Electronic Science, Institute of Electromagnetics and Acoustics, Xiamen University, Xiamen, ChinaCollege of Communication and Information Engineering, Xi'an University of Science and Technology, Xi'an, ChinaThe design of a broadband tunable absorber is proposed based on a thin vanadium dioxide metasurface, which is composed of a simple array of vanadium dioxide and a bottom gold film. When the conductivity of vanadium dioxide is equal to <inline-formula><tex-math notation="LaTeX">$\text{2000}\ {\Omega ^{ - 1}}{\text{cm}^{ - 1}}$</tex-math></inline-formula>, simulated absorptance exceeds 90% with 71% bandwidth from 0.47 to 0.99 THz and full width at half maximum is 98% from 0.354 to 1.036 THz with center frequency of 0.695 THz. Simulated results show that absorptance peak can be tuned from 5% to 100% when the conductivity changes continually from <inline-formula><tex-math notation="LaTeX">$\text{10}\ {\Omega ^{ - 1}}{\text{cm}^{ - 1}}$</tex-math></inline-formula> to <inline-formula><tex-math notation="LaTeX">$\text{2000}\ {\Omega ^{ - 1}}{\text{cm}^{ - 1}}$</tex-math></inline-formula>. The designed absorber may have useful applications in terahertz spectrum such as energy harvesting, thermal emitter, and sensing.https://ieeexplore.ieee.org/document/8649647/Absorbermetasurfacevanadium oxide. |
| spellingShingle | Zhengyong Song Maoliang Wei Zhisheng Wang Guoxiong Cai Yineng Liu Yuanguo Zhou Terahertz Absorber With Reconfigurable Bandwidth Based on Isotropic Vanadium Dioxide Metasurfaces IEEE Photonics Journal Absorber metasurface vanadium oxide. |
| title | Terahertz Absorber With Reconfigurable Bandwidth Based on Isotropic Vanadium Dioxide Metasurfaces |
| title_full | Terahertz Absorber With Reconfigurable Bandwidth Based on Isotropic Vanadium Dioxide Metasurfaces |
| title_fullStr | Terahertz Absorber With Reconfigurable Bandwidth Based on Isotropic Vanadium Dioxide Metasurfaces |
| title_full_unstemmed | Terahertz Absorber With Reconfigurable Bandwidth Based on Isotropic Vanadium Dioxide Metasurfaces |
| title_short | Terahertz Absorber With Reconfigurable Bandwidth Based on Isotropic Vanadium Dioxide Metasurfaces |
| title_sort | terahertz absorber with reconfigurable bandwidth based on isotropic vanadium dioxide metasurfaces |
| topic | Absorber metasurface vanadium oxide. |
| url | https://ieeexplore.ieee.org/document/8649647/ |
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