Vanadium dioxide thin films-assisted terahertz meta-surface for simultaneous absorption, polarization conversion bi-functional switching, and wavefront operation
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Vanadium dioxide thin films-assisted terahertz meta-surface for simultaneous absorption, polarization conversion bi-functional switching, and wavefront operation
|
|
| Автор |
Wei, H.
Ge, H. Zhao, T. Sharma, S. Petru, M. Prakash, Dwivedi, S. Kumar, A. Abbas, M. |
|
| Тематика |
BROADBAND ABSORPTION
REFLECTIVE HALF-WAVE PLATES SWITCHABLE METASURFACES VANADIUM DIOXIDE WAVEFRONT OPERATION |
|
| Описание |
Actively switchable metasurfaces are extremely useful for achieving a multifunctional integrated platform. The proposed design enables functional switching through the temperature-induced phase transition features of vanadium dioxide (VO2). The hypothesized metasurface can be considered a broadband absorber when VO2 is in the metallic phase, with an absorption rate approaching 90% in the frequency spectrum of 1.41–2.69 THz, according to numerical simulations. When VO2 is in the insulating phase, the proposed metasurface acts as a half-wave plate with more than 80% polarization conversion rate (PCR) in the frequency range of 0.71–2.72 THz. Furthermore, the dynamic modulation of absorbance and PCR can be achieved when the VO2 conductivity varies within a specific range. Finally, by changing the opening angle of the gold split-ring resonator to introduce an abrupt phase at the interface, the composed metacell can perform arbitrary manipulation of reflected beams in the 1.0–2.2 THz broadband range; we also design 1D and 2D focusing metalenses. Both have good subwavelength focusing characteristics. Therefore, the proposed metasurface can be effectively applied in sixth-generation communication systems, terahertz imaging, and other technologies. © 2023 The Author(s)
King Khalid University, KKU: RCAMS/KKU/025-23 The authors express their appreciation to The Research Center for Advanced Materials Science (RCAMS) at King Khalid University, Saudi Arabia, for funding this work under the grant number RCAMS/KKU/025-23. |
|
| Дата |
2024-04-05T16:34:05Z
2024-04-05T16:34:05Z 2023 |
|
| Тип |
Article
Journal article (info:eu-repo/semantics/article) |info:eu-repo/semantics/publishedVersion |
|
| Идентификатор |
Wei, H, Ge, H, Zhao, T, Sharma, S, Petru, M, Prakash Dwivedi, S, Kumar, A & Abbas, M 2023, 'Vanadium dioxide thin films-assisted terahertz meta-surface for simultaneous absorption, polarization conversion bi-functional switching, and wavefront operation', Results in Physics, Том. 53, 106970. https://doi.org/10.1016/j.rinp.2023.106970
Wei, H., Ge, H., Zhao, T., Sharma, S., Petru, M., Prakash Dwivedi, S., Kumar, A., & Abbas, M. (2023). Vanadium dioxide thin films-assisted terahertz meta-surface for simultaneous absorption, polarization conversion bi-functional switching, and wavefront operation. Results in Physics, 53, [106970]. https://doi.org/10.1016/j.rinp.2023.106970 2211-3797 Final All Open Access, Gold https://www.scopus.com/inward/record.uri?eid=2-s2.0-85173191056&doi=10.1016%2fj.rinp.2023.106970&partnerID=40&md5=a0c37e0aacacfbece104f30a1e3fe39e https://doi.org/10.1016/j.rinp.2023.106970 http://elar.urfu.ru/handle/10995/130837 10.1016/j.rinp.2023.106970 85173191056 001091161000001 |
|
| Язык |
en
|
|
| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
|
| Формат |
application/pdf
|
|
| Издатель |
Elsevier B.V.
|
|
| Источник |
Results in Physics
Results in Physics |
|