Nanoscale Refractive Index Sensors Based on Fano Resonance Phenomena
In this paper, a new refractive index sensor based on Fano resonance is introduced. It is mainly composed of two parts: a metal–insulator–metal as a base waveguide and an annular resonant cavity with a double notch and a double convex circle as a coupling structure. The sensing characteristics of th...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/9/12/982 |
| _version_ | 1827637228447203328 |
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| author | Yifeng Ren Qiang Wang Lifang Shen Feng Liu Yang Cui Chuanhui Zhu Zhanbo Chen Biyi Huang Shubin Yan |
| author_facet | Yifeng Ren Qiang Wang Lifang Shen Feng Liu Yang Cui Chuanhui Zhu Zhanbo Chen Biyi Huang Shubin Yan |
| author_sort | Yifeng Ren |
| collection | DOAJ |
| description | In this paper, a new refractive index sensor based on Fano resonance is introduced. It is mainly composed of two parts: a metal–insulator–metal as a base waveguide and an annular resonant cavity with a double notch and a double convex circle as a coupling structure. The sensing characteristics of the design are investigated via finite element calculations. The influence of the remaining structure parameters on the system’s sensing performance and the relationship between the wavelength corresponding to the Fano trough and the refractive index are also investigated. Furthermore, the structure is applied to refractive index sensors, resulting in a type with a sensitivity of 2740 nm/RIU and a figure of merit of 52.69. |
| first_indexed | 2024-03-09T15:57:23Z |
| format | Article |
| id | doaj.art-6475b4caa6dc42858fadb6fe874c3202 |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-09T15:57:23Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-6475b4caa6dc42858fadb6fe874c32022023-11-24T17:25:51ZengMDPI AGPhotonics2304-67322022-12-0191298210.3390/photonics9120982Nanoscale Refractive Index Sensors Based on Fano Resonance PhenomenaYifeng Ren0Qiang Wang1Lifang Shen2Feng Liu3Yang Cui4Chuanhui Zhu5Zhanbo Chen6Biyi Huang7Shubin Yan8School of Electrical and Control Engineering, North University of China, Taiyuan 030051, ChinaSchool of Electrical and Control Engineering, North University of China, Taiyuan 030051, ChinaSchool of Electrical Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou 310018, ChinaSchool of Electrical and Control Engineering, North University of China, Taiyuan 030051, ChinaSchool of Electrical Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou 310018, ChinaSchool of Electrical Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou 310018, ChinaSchool of Electrical Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou 310018, ChinaSchool of Electrical Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou 310018, ChinaSchool of Electrical Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou 310018, ChinaIn this paper, a new refractive index sensor based on Fano resonance is introduced. It is mainly composed of two parts: a metal–insulator–metal as a base waveguide and an annular resonant cavity with a double notch and a double convex circle as a coupling structure. The sensing characteristics of the design are investigated via finite element calculations. The influence of the remaining structure parameters on the system’s sensing performance and the relationship between the wavelength corresponding to the Fano trough and the refractive index are also investigated. Furthermore, the structure is applied to refractive index sensors, resulting in a type with a sensitivity of 2740 nm/RIU and a figure of merit of 52.69.https://www.mdpi.com/2304-6732/9/12/982Fano resonancecouplingrefractive index sensingfinite element method |
| spellingShingle | Yifeng Ren Qiang Wang Lifang Shen Feng Liu Yang Cui Chuanhui Zhu Zhanbo Chen Biyi Huang Shubin Yan Nanoscale Refractive Index Sensors Based on Fano Resonance Phenomena Photonics Fano resonance coupling refractive index sensing finite element method |
| title | Nanoscale Refractive Index Sensors Based on Fano Resonance Phenomena |
| title_full | Nanoscale Refractive Index Sensors Based on Fano Resonance Phenomena |
| title_fullStr | Nanoscale Refractive Index Sensors Based on Fano Resonance Phenomena |
| title_full_unstemmed | Nanoscale Refractive Index Sensors Based on Fano Resonance Phenomena |
| title_short | Nanoscale Refractive Index Sensors Based on Fano Resonance Phenomena |
| title_sort | nanoscale refractive index sensors based on fano resonance phenomena |
| topic | Fano resonance coupling refractive index sensing finite element method |
| url | https://www.mdpi.com/2304-6732/9/12/982 |
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