Multi-Structure-Based Refractive Index Sensor and Its Application in Temperature Sensing
In this paper, a new sensor structure is designed, which consists of a metal–insulator–metal (MIM) waveguide and a circular protrusion and a rectangular triangular cavity (CPRTC). The characterization of nanoscale sensors is considered using an approximate numerical method (finite element method). T...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-01-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/25/2/412 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832587521552285696 |
|---|---|
| author | Zhaokun Yan Shubin Yan Ziheng Xu Changxing Chen Yuhao Cao Xiaoran Yan Chong Wang Taiquan Wu |
| author_facet | Zhaokun Yan Shubin Yan Ziheng Xu Changxing Chen Yuhao Cao Xiaoran Yan Chong Wang Taiquan Wu |
| author_sort | Zhaokun Yan |
| collection | DOAJ |
| description | In this paper, a new sensor structure is designed, which consists of a metal–insulator–metal (MIM) waveguide and a circular protrusion and a rectangular triangular cavity (CPRTC). The characterization of nanoscale sensors is considered using an approximate numerical method (finite element method). The simulation results show that the sharp asymmetric resonance generated by the interaction between the discrete narrow-band mode and the continuous wideband mode is called Fano resonance. The performance of the sensor is considerably influenced by CPRTC. The sensor structure has attained a sensitivity of 3060 nm/RIU and a figure of merit (FOM) of 53.68. In addition, the application of this structure to temperature sensors is also investigated; its sensitivity is 1.493 nm/°C. The structure also has potential for other nanosensors. |
| format | Article |
| id | doaj-art-b448b7ba2ce8483ea727df2ae4961785 |
| institution | Kabale University |
| issn | 1424-8220 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj-art-b448b7ba2ce8483ea727df2ae49617852025-01-24T13:48:50ZengMDPI AGSensors1424-82202025-01-0125241210.3390/s25020412Multi-Structure-Based Refractive Index Sensor and Its Application in Temperature SensingZhaokun Yan0Shubin Yan1Ziheng Xu2Changxing Chen3Yuhao Cao4Xiaoran Yan5Chong Wang6Taiquan Wu7School 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, ChinaJoint Laboratory of Intelligent Equipment and System for Water Conservancy and Hydropower Safety Monitoring of Zhejiang Province and Belarus, 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, 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 sensor structure is designed, which consists of a metal–insulator–metal (MIM) waveguide and a circular protrusion and a rectangular triangular cavity (CPRTC). The characterization of nanoscale sensors is considered using an approximate numerical method (finite element method). The simulation results show that the sharp asymmetric resonance generated by the interaction between the discrete narrow-band mode and the continuous wideband mode is called Fano resonance. The performance of the sensor is considerably influenced by CPRTC. The sensor structure has attained a sensitivity of 3060 nm/RIU and a figure of merit (FOM) of 53.68. In addition, the application of this structure to temperature sensors is also investigated; its sensitivity is 1.493 nm/°C. The structure also has potential for other nanosensors.https://www.mdpi.com/1424-8220/25/2/412metal–insulator–metalFano resonancerefractive-index nanosensor |
| spellingShingle | Zhaokun Yan Shubin Yan Ziheng Xu Changxing Chen Yuhao Cao Xiaoran Yan Chong Wang Taiquan Wu Multi-Structure-Based Refractive Index Sensor and Its Application in Temperature Sensing Sensors metal–insulator–metal Fano resonance refractive-index nanosensor |
| title | Multi-Structure-Based Refractive Index Sensor and Its Application in Temperature Sensing |
| title_full | Multi-Structure-Based Refractive Index Sensor and Its Application in Temperature Sensing |
| title_fullStr | Multi-Structure-Based Refractive Index Sensor and Its Application in Temperature Sensing |
| title_full_unstemmed | Multi-Structure-Based Refractive Index Sensor and Its Application in Temperature Sensing |
| title_short | Multi-Structure-Based Refractive Index Sensor and Its Application in Temperature Sensing |
| title_sort | multi structure based refractive index sensor and its application in temperature sensing |
| topic | metal–insulator–metal Fano resonance refractive-index nanosensor |
| url | https://www.mdpi.com/1424-8220/25/2/412 |
| work_keys_str_mv | AT zhaokunyan multistructurebasedrefractiveindexsensoranditsapplicationintemperaturesensing AT shubinyan multistructurebasedrefractiveindexsensoranditsapplicationintemperaturesensing AT zihengxu multistructurebasedrefractiveindexsensoranditsapplicationintemperaturesensing AT changxingchen multistructurebasedrefractiveindexsensoranditsapplicationintemperaturesensing AT yuhaocao multistructurebasedrefractiveindexsensoranditsapplicationintemperaturesensing AT xiaoranyan multistructurebasedrefractiveindexsensoranditsapplicationintemperaturesensing AT chongwang multistructurebasedrefractiveindexsensoranditsapplicationintemperaturesensing AT taiquanwu multistructurebasedrefractiveindexsensoranditsapplicationintemperaturesensing |