Experiment on terahertz metasurfaces of metal split ring resonators with bound state in the continuum
A bound state in the continuum (BIC) is a wave that coexists with a continuous wave but remains localized. In the terahertz band, BIC can design devices with an ultra-high mass factor (Q factor), which is of great value for terahertz science and technology, so we designed a terahertz BIC metasurface...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2023-05-01
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| Series: | APL Materials |
| Online Access: | http://dx.doi.org/10.1063/5.0147843 |
| _version_ | 1797771767529340928 |
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| author | Tailin Zhang Xingyuan Zhang Yun Shen Yinsheng Xu Laibin Luo Jianqiang Gu Sijia Yang Jie Xu Xiaohua Deng |
| author_facet | Tailin Zhang Xingyuan Zhang Yun Shen Yinsheng Xu Laibin Luo Jianqiang Gu Sijia Yang Jie Xu Xiaohua Deng |
| author_sort | Tailin Zhang |
| collection | DOAJ |
| description | A bound state in the continuum (BIC) is a wave that coexists with a continuous wave but remains localized. In the terahertz band, BIC can design devices with an ultra-high mass factor (Q factor), which is of great value for terahertz science and technology, so we designed a terahertz BIC metasurface structure composed of metal split ring resonators (SRRs). According to the symmetric protection principle of superlattice mode, the leakage process of BIC states to the far field is studied by changing the gap width of SRR. By introducing multiple SRRs and changing their arrangement, we obtain three superlattice modes and BIC states. The leakage of BIC states into the far field is observed experimentally, which means that observable quasi-BIC patterns are formed. We verify a feasible method that allows for flexible design and implementation of BIC. |
| first_indexed | 2024-03-12T21:42:27Z |
| format | Article |
| id | doaj.art-7d5beb728e704ae0b40c607399448e03 |
| institution | Directory Open Access Journal |
| issn | 2166-532X |
| language | English |
| last_indexed | 2024-03-12T21:42:27Z |
| publishDate | 2023-05-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Materials |
| spelling | doaj.art-7d5beb728e704ae0b40c607399448e032023-07-26T15:44:37ZengAIP Publishing LLCAPL Materials2166-532X2023-05-01115051102051102-910.1063/5.0147843Experiment on terahertz metasurfaces of metal split ring resonators with bound state in the continuumTailin Zhang0Xingyuan Zhang1Yun Shen2Yinsheng Xu3Laibin Luo4Jianqiang Gu5Sijia Yang6Jie Xu7Xiaohua Deng8Department of Physics, School of Physics and Materials Science, Nanchang University, Nanchang 330031, ChinaCenter for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, ChinaDepartment of Physics, School of Physics and Materials Science, Nanchang University, Nanchang 330031, ChinaDepartment of Physics, School of Physics and Materials Science, Nanchang University, Nanchang 330031, ChinaDepartment of Physics, School of Physics and Materials Science, Nanchang University, Nanchang 330031, ChinaCenter for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, ChinaInstitute of Space Science and Technology, Nanchang University, Nanchang 330031, ChinaSchool of Medical Information and Engineering, Southwest Medical University, Luzhou 646000, ChinaCenter for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, ChinaA bound state in the continuum (BIC) is a wave that coexists with a continuous wave but remains localized. In the terahertz band, BIC can design devices with an ultra-high mass factor (Q factor), which is of great value for terahertz science and technology, so we designed a terahertz BIC metasurface structure composed of metal split ring resonators (SRRs). According to the symmetric protection principle of superlattice mode, the leakage process of BIC states to the far field is studied by changing the gap width of SRR. By introducing multiple SRRs and changing their arrangement, we obtain three superlattice modes and BIC states. The leakage of BIC states into the far field is observed experimentally, which means that observable quasi-BIC patterns are formed. We verify a feasible method that allows for flexible design and implementation of BIC.http://dx.doi.org/10.1063/5.0147843 |
| spellingShingle | Tailin Zhang Xingyuan Zhang Yun Shen Yinsheng Xu Laibin Luo Jianqiang Gu Sijia Yang Jie Xu Xiaohua Deng Experiment on terahertz metasurfaces of metal split ring resonators with bound state in the continuum APL Materials |
| title | Experiment on terahertz metasurfaces of metal split ring resonators with bound state in the continuum |
| title_full | Experiment on terahertz metasurfaces of metal split ring resonators with bound state in the continuum |
| title_fullStr | Experiment on terahertz metasurfaces of metal split ring resonators with bound state in the continuum |
| title_full_unstemmed | Experiment on terahertz metasurfaces of metal split ring resonators with bound state in the continuum |
| title_short | Experiment on terahertz metasurfaces of metal split ring resonators with bound state in the continuum |
| title_sort | experiment on terahertz metasurfaces of metal split ring resonators with bound state in the continuum |
| url | http://dx.doi.org/10.1063/5.0147843 |
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