A Nanoscale Sensor Based on a Toroidal Cavity with a Built-In Elliptical Ring Structure for Temperature Sensing Application
In this article, a refractive index sensor based on Fano resonance, which is generated by the coupling of a metal–insulator–metal (MIM) waveguide structure and a toroidal cavity with a built-in elliptical ring (TCER) structure, is presented. The finite element method (FEM) was employed to analyze th...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-09-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/19/3396 |
| _version_ | 1797477737001123840 |
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| author | Feng Liu Shubin Yan Lifang Shen Pengwei Liu Lili Chen Xiaoyu Zhang Guang Liu Jilai Liu Tingsong Li Yifeng Ren |
| author_facet | Feng Liu Shubin Yan Lifang Shen Pengwei Liu Lili Chen Xiaoyu Zhang Guang Liu Jilai Liu Tingsong Li Yifeng Ren |
| author_sort | Feng Liu |
| collection | DOAJ |
| description | In this article, a refractive index sensor based on Fano resonance, which is generated by the coupling of a metal–insulator–metal (MIM) waveguide structure and a toroidal cavity with a built-in elliptical ring (TCER) structure, is presented. The finite element method (FEM) was employed to analyze the propagation characteristics of the integral structure. The effects of refractive index and different geometric parameters of the structure on the sensing characteristics were evaluated. The maximum sensitivity was 2220 nm/RIU with a figure of merit (FOM) of 58.7, which is the best performance level that the designed structure could achieve. Moreover, due to its high sensitivity and simple structure, the refractive index sensor can be applied in the field of temperature detection, and its sensitivity is calculated to be 1.187 nm/℃. |
| first_indexed | 2024-03-09T21:21:56Z |
| format | Article |
| id | doaj.art-a08e39a8d49841059238e53214a71325 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T21:21:56Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-a08e39a8d49841059238e53214a713252023-11-23T21:19:30ZengMDPI AGNanomaterials2079-49912022-09-011219339610.3390/nano12193396A Nanoscale Sensor Based on a Toroidal Cavity with a Built-In Elliptical Ring Structure for Temperature Sensing ApplicationFeng Liu0Shubin Yan1Lifang Shen2Pengwei Liu3Lili Chen4Xiaoyu Zhang5Guang Liu6Jilai Liu7Tingsong Li8Yifeng Ren9School 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 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 and Control Engineering, North University of China, Taiyuan 030051, ChinaSchool of Electrical and Control Engineering, North University of China, Taiyuan 030051, ChinaIn this article, a refractive index sensor based on Fano resonance, which is generated by the coupling of a metal–insulator–metal (MIM) waveguide structure and a toroidal cavity with a built-in elliptical ring (TCER) structure, is presented. The finite element method (FEM) was employed to analyze the propagation characteristics of the integral structure. The effects of refractive index and different geometric parameters of the structure on the sensing characteristics were evaluated. The maximum sensitivity was 2220 nm/RIU with a figure of merit (FOM) of 58.7, which is the best performance level that the designed structure could achieve. Moreover, due to its high sensitivity and simple structure, the refractive index sensor can be applied in the field of temperature detection, and its sensitivity is calculated to be 1.187 nm/℃.https://www.mdpi.com/2079-4991/12/19/3396refractive index sensorFano resonanceMIMtemperature sensing |
| spellingShingle | Feng Liu Shubin Yan Lifang Shen Pengwei Liu Lili Chen Xiaoyu Zhang Guang Liu Jilai Liu Tingsong Li Yifeng Ren A Nanoscale Sensor Based on a Toroidal Cavity with a Built-In Elliptical Ring Structure for Temperature Sensing Application Nanomaterials refractive index sensor Fano resonance MIM temperature sensing |
| title | A Nanoscale Sensor Based on a Toroidal Cavity with a Built-In Elliptical Ring Structure for Temperature Sensing Application |
| title_full | A Nanoscale Sensor Based on a Toroidal Cavity with a Built-In Elliptical Ring Structure for Temperature Sensing Application |
| title_fullStr | A Nanoscale Sensor Based on a Toroidal Cavity with a Built-In Elliptical Ring Structure for Temperature Sensing Application |
| title_full_unstemmed | A Nanoscale Sensor Based on a Toroidal Cavity with a Built-In Elliptical Ring Structure for Temperature Sensing Application |
| title_short | A Nanoscale Sensor Based on a Toroidal Cavity with a Built-In Elliptical Ring Structure for Temperature Sensing Application |
| title_sort | nanoscale sensor based on a toroidal cavity with a built in elliptical ring structure for temperature sensing application |
| topic | refractive index sensor Fano resonance MIM temperature sensing |
| url | https://www.mdpi.com/2079-4991/12/19/3396 |
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