Multiple Fano resonances inspired by bound states in all-dielectric double-opening resonant ring metasurfaces
Sensors are important tools in the fields of biology and chemistry. Highly sensitive, robust and low-cost sensors and their preparation methods have always constituted a research topic. In this paper, an all-dielectric metasurface with a double-opening resonant ring is proposed. The metasurfaces can...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-02-01
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| Series: | Results in Physics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S221137972301094X |
| _version_ | 1797306913400029184 |
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| author | Yunping Qi Qiang Shi Shiyu Zhao Zihao Zhou Xiangxian Wang |
| author_facet | Yunping Qi Qiang Shi Shiyu Zhao Zihao Zhou Xiangxian Wang |
| author_sort | Yunping Qi |
| collection | DOAJ |
| description | Sensors are important tools in the fields of biology and chemistry. Highly sensitive, robust and low-cost sensors and their preparation methods have always constituted a research topic. In this paper, an all-dielectric metasurface with a double-opening resonant ring is proposed. The metasurfaces can support MD and ED modes to excite three q-BIC modes. And the Q-factor can reach 4.97×104, 2.02×105 and 1.39×106 respectively. For the asymmetric structure, the three excited peaks have certain polarization-insensitive characteristics. With the introduction of graphene, the dynamic regulation of transmission peak can be realized, specifically the regulation of resonance wavelength, and the intensity of transmittance. Since the all-dielectric metasurfaces assist in enhancing the interaction of the light field with dielectric materials, and the field enhancement effect is obvious, so we analyze the sensing properties of the metasurface. It has a sensitivity of up to 1340 nm/RIU and FOM can reach 1.17×106. Finally, we additionally analyze another asymmetric form, which enables the excitation of the q-BIC by changing the polarization angle, making the structure potentially valuable for optical switching as well. |
| first_indexed | 2024-03-08T00:49:42Z |
| format | Article |
| id | doaj.art-2365efcec60c49fb98c7a23573ee5473 |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-03-08T00:49:42Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-2365efcec60c49fb98c7a23573ee54732024-02-15T05:23:35ZengElsevierResults in Physics2211-37972024-02-0157107301Multiple Fano resonances inspired by bound states in all-dielectric double-opening resonant ring metasurfacesYunping Qi0Qiang Shi1Shiyu Zhao2Zihao Zhou3Xiangxian Wang4College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou, 730070, China; Corresponding author.College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou, 730070, ChinaCollege of Physics and Electronic Engineering, Northwest Normal University, Lanzhou, 730070, ChinaCollege of Physics and Electronic Engineering, Northwest Normal University, Lanzhou, 730070, ChinaSchool of Science, Lanzhou University of Technology, Lanzhou, 730050, ChinaSensors are important tools in the fields of biology and chemistry. Highly sensitive, robust and low-cost sensors and their preparation methods have always constituted a research topic. In this paper, an all-dielectric metasurface with a double-opening resonant ring is proposed. The metasurfaces can support MD and ED modes to excite three q-BIC modes. And the Q-factor can reach 4.97×104, 2.02×105 and 1.39×106 respectively. For the asymmetric structure, the three excited peaks have certain polarization-insensitive characteristics. With the introduction of graphene, the dynamic regulation of transmission peak can be realized, specifically the regulation of resonance wavelength, and the intensity of transmittance. Since the all-dielectric metasurfaces assist in enhancing the interaction of the light field with dielectric materials, and the field enhancement effect is obvious, so we analyze the sensing properties of the metasurface. It has a sensitivity of up to 1340 nm/RIU and FOM can reach 1.17×106. Finally, we additionally analyze another asymmetric form, which enables the excitation of the q-BIC by changing the polarization angle, making the structure potentially valuable for optical switching as well.http://www.sciencedirect.com/science/article/pii/S221137972301094XAll-dielectric metasurfacesMultipole decompositionRefractive index sensorPolarization insensitive |
| spellingShingle | Yunping Qi Qiang Shi Shiyu Zhao Zihao Zhou Xiangxian Wang Multiple Fano resonances inspired by bound states in all-dielectric double-opening resonant ring metasurfaces Results in Physics All-dielectric metasurfaces Multipole decomposition Refractive index sensor Polarization insensitive |
| title | Multiple Fano resonances inspired by bound states in all-dielectric double-opening resonant ring metasurfaces |
| title_full | Multiple Fano resonances inspired by bound states in all-dielectric double-opening resonant ring metasurfaces |
| title_fullStr | Multiple Fano resonances inspired by bound states in all-dielectric double-opening resonant ring metasurfaces |
| title_full_unstemmed | Multiple Fano resonances inspired by bound states in all-dielectric double-opening resonant ring metasurfaces |
| title_short | Multiple Fano resonances inspired by bound states in all-dielectric double-opening resonant ring metasurfaces |
| title_sort | multiple fano resonances inspired by bound states in all dielectric double opening resonant ring metasurfaces |
| topic | All-dielectric metasurfaces Multipole decomposition Refractive index sensor Polarization insensitive |
| url | http://www.sciencedirect.com/science/article/pii/S221137972301094X |
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