Analogue of Electromagnetically Induced Transparency in an S-Shaped All-Dielectric Metasurface
We proposed and numerically investigated an analogue of electromagnetically induced transparency (EIT) all-dielectric metasurface that features one asymmetric <italic>S</italic>-shaped silicon resonator in the unit cell and generates high transparency, high <italic>Q</italic>...
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| Format: | Article |
| Language: | English |
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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/8727906/ |
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| author | Jinyan Diao Bingxin Han Jie Yin Xiangjun Li Tingting Lang Zhi Hong |
| author_facet | Jinyan Diao Bingxin Han Jie Yin Xiangjun Li Tingting Lang Zhi Hong |
| author_sort | Jinyan Diao |
| collection | DOAJ |
| description | We proposed and numerically investigated an analogue of electromagnetically induced transparency (EIT) all-dielectric metasurface that features one asymmetric <italic>S</italic>-shaped silicon resonator in the unit cell and generates high transparency, high <italic>Q</italic>-factor resonance in the near infrared spectral region. Breaking the symmetry of the <italic>S</italic>-shaped structure could provide a pathway to excite a trapped magnetic mode that coupled to a bright electric dipolar moment, achieving a sharp EIT-like response. And the <italic>Q</italic> value of the resonance can be easily modified by altering the asymmetric degree of the structure. In particular, the transparency window will almost maintain its symmetric shape and high transmission of 97%, but shift accordingly as the structural parameters (silicon bar's length, width, or thickness) vary in a large range, because of the very small detuning between the two coupled modes. The proposed <italic>S</italic>-shaped all-dielectric metasurface could ease fabrication challenges and have potential applications in biochemical sensing, narrowband filters, optical modulations, and slow light devices. |
| format | Article |
| id | doaj-art-35276adb6c8043f7b036c3d26505abc7 |
| institution | DOAJ |
| issn | 1943-0655 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-35276adb6c8043f7b036c3d26505abc72025-08-20T03:15:15ZengIEEEIEEE Photonics Journal1943-06552019-01-0111311010.1109/JPHOT.2019.29204338727906Analogue of Electromagnetically Induced Transparency in an S-Shaped All-Dielectric MetasurfaceJinyan Diao0Bingxin Han1Jie Yin2Xiangjun Li3https://orcid.org/0000-0002-0824-0100Tingting Lang4https://orcid.org/0000-0002-9112-3270Zhi Hong5https://orcid.org/0000-0001-8995-4780Centre for THz Research, China Jiliang University, Hangzhou, ChinaCentre for THz Research, China Jiliang University, Hangzhou, ChinaCentre for THz Research, China Jiliang University, Hangzhou, ChinaCentre for THz Research, China Jiliang University, Hangzhou, ChinaCentre for THz Research, China Jiliang University, Hangzhou, ChinaCentre for THz Research, China Jiliang University, Hangzhou, ChinaWe proposed and numerically investigated an analogue of electromagnetically induced transparency (EIT) all-dielectric metasurface that features one asymmetric <italic>S</italic>-shaped silicon resonator in the unit cell and generates high transparency, high <italic>Q</italic>-factor resonance in the near infrared spectral region. Breaking the symmetry of the <italic>S</italic>-shaped structure could provide a pathway to excite a trapped magnetic mode that coupled to a bright electric dipolar moment, achieving a sharp EIT-like response. And the <italic>Q</italic> value of the resonance can be easily modified by altering the asymmetric degree of the structure. In particular, the transparency window will almost maintain its symmetric shape and high transmission of 97%, but shift accordingly as the structural parameters (silicon bar's length, width, or thickness) vary in a large range, because of the very small detuning between the two coupled modes. The proposed <italic>S</italic>-shaped all-dielectric metasurface could ease fabrication challenges and have potential applications in biochemical sensing, narrowband filters, optical modulations, and slow light devices.https://ieeexplore.ieee.org/document/8727906/Electromagnetically induced transparencyall-dielectric metasurfacehigh Q-factor |
| spellingShingle | Jinyan Diao Bingxin Han Jie Yin Xiangjun Li Tingting Lang Zhi Hong Analogue of Electromagnetically Induced Transparency in an S-Shaped All-Dielectric Metasurface IEEE Photonics Journal Electromagnetically induced transparency all-dielectric metasurface high Q-factor |
| title | Analogue of Electromagnetically Induced Transparency in an S-Shaped All-Dielectric Metasurface |
| title_full | Analogue of Electromagnetically Induced Transparency in an S-Shaped All-Dielectric Metasurface |
| title_fullStr | Analogue of Electromagnetically Induced Transparency in an S-Shaped All-Dielectric Metasurface |
| title_full_unstemmed | Analogue of Electromagnetically Induced Transparency in an S-Shaped All-Dielectric Metasurface |
| title_short | Analogue of Electromagnetically Induced Transparency in an S-Shaped All-Dielectric Metasurface |
| title_sort | analogue of electromagnetically induced transparency in an s shaped all dielectric metasurface |
| topic | Electromagnetically induced transparency all-dielectric metasurface high Q-factor |
| url | https://ieeexplore.ieee.org/document/8727906/ |
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