An ultrathin and flexible terahertz electromagnetically induced transparency-like metasurface based on asymmetric resonators
Terahertz (THz) electromagnetically induced transparency-like (EIT-like) metasurfaces have been extensively explored and frequently used for sensing, switching, slow light, and enhanced nonlinear effects. Reducing radiation and non-radiation losses in EIT-like systems contributes to increased electr...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | EPJ Applied Metamaterials |
| Subjects: | |
| Online Access: | https://epjam.edp-open.org/articles/epjam/full_html/2023/01/epjam220012/epjam220012.html |
| _version_ | 1797829329593303040 |
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| author | Nourinovin Shohreh Park Sae June Abbasi Qammer H. Alomainy Akram |
| author_facet | Nourinovin Shohreh Park Sae June Abbasi Qammer H. Alomainy Akram |
| author_sort | Nourinovin Shohreh |
| collection | DOAJ |
| description | Terahertz (THz) electromagnetically induced transparency-like (EIT-like) metasurfaces have been extensively explored and frequently used for sensing, switching, slow light, and enhanced nonlinear effects. Reducing radiation and non-radiation losses in EIT-like systems contributes to increased electromagnetic (EM) field confinement, higher transmission peak magnitude, and Q-factor. This can be accomplished by the use of proper dielectric properties and engineering novel designs. Therefore, we fabricated a THz EIT-like metasurface based on asymmetric metallic resonators on an ultra-thin and flexible dielectric substrate. Because the quadruple mode is stimulated in a closed loop, an anti-parallel surface current forms, producing a transparency window with a transmission peak magnitude of 0.8 at 1.96 THz. To control the growing trend of EIT-like resonance, the structure was designed with four asymmetry levels. The effect of the substrate on the resonance response was also explored, and we demonstrated experimentally how the ultra-thin substrate and the metasurface asymmetric novel pattern contributed to higher transmission and lower loss. |
| first_indexed | 2024-04-09T13:19:45Z |
| format | Article |
| id | doaj.art-44ae8d74baa5419da7f4a0de75a5a556 |
| institution | Directory Open Access Journal |
| issn | 2272-2394 |
| language | English |
| last_indexed | 2024-04-09T13:19:45Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Applied Metamaterials |
| spelling | doaj.art-44ae8d74baa5419da7f4a0de75a5a5562023-05-11T09:09:50ZengEDP SciencesEPJ Applied Metamaterials2272-23942023-01-0110410.1051/epjam/2023001epjam220012An ultrathin and flexible terahertz electromagnetically induced transparency-like metasurface based on asymmetric resonatorsNourinovin Shohreh0Park Sae June1Abbasi Qammer H.2Alomainy Akram3School of Electronic Engineering and Computer Science, Queen Mary University of LondonSchool of Electronic Engineering and Computer Science, Queen Mary University of LondonJames Watt School of Engineering, University of GlasgowSchool of Electronic Engineering and Computer Science, Queen Mary University of LondonTerahertz (THz) electromagnetically induced transparency-like (EIT-like) metasurfaces have been extensively explored and frequently used for sensing, switching, slow light, and enhanced nonlinear effects. Reducing radiation and non-radiation losses in EIT-like systems contributes to increased electromagnetic (EM) field confinement, higher transmission peak magnitude, and Q-factor. This can be accomplished by the use of proper dielectric properties and engineering novel designs. Therefore, we fabricated a THz EIT-like metasurface based on asymmetric metallic resonators on an ultra-thin and flexible dielectric substrate. Because the quadruple mode is stimulated in a closed loop, an anti-parallel surface current forms, producing a transparency window with a transmission peak magnitude of 0.8 at 1.96 THz. To control the growing trend of EIT-like resonance, the structure was designed with four asymmetry levels. The effect of the substrate on the resonance response was also explored, and we demonstrated experimentally how the ultra-thin substrate and the metasurface asymmetric novel pattern contributed to higher transmission and lower loss.https://epjam.edp-open.org/articles/epjam/full_html/2023/01/epjam220012/epjam220012.htmlterahertzmetasurfaceeit-like resonance |
| spellingShingle | Nourinovin Shohreh Park Sae June Abbasi Qammer H. Alomainy Akram An ultrathin and flexible terahertz electromagnetically induced transparency-like metasurface based on asymmetric resonators EPJ Applied Metamaterials terahertz metasurface eit-like resonance |
| title | An ultrathin and flexible terahertz electromagnetically induced transparency-like metasurface based on asymmetric resonators |
| title_full | An ultrathin and flexible terahertz electromagnetically induced transparency-like metasurface based on asymmetric resonators |
| title_fullStr | An ultrathin and flexible terahertz electromagnetically induced transparency-like metasurface based on asymmetric resonators |
| title_full_unstemmed | An ultrathin and flexible terahertz electromagnetically induced transparency-like metasurface based on asymmetric resonators |
| title_short | An ultrathin and flexible terahertz electromagnetically induced transparency-like metasurface based on asymmetric resonators |
| title_sort | ultrathin and flexible terahertz electromagnetically induced transparency like metasurface based on asymmetric resonators |
| topic | terahertz metasurface eit-like resonance |
| url | https://epjam.edp-open.org/articles/epjam/full_html/2023/01/epjam220012/epjam220012.html |
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