Refractive Index Sensor Based on a Metal-Insulator-Metal Bus Waveguide Coupled with a U-Shaped Ring Resonator
In this study, a novel refractive index sensor structure was designed consisting of a metal-insulator-metal (MIM) waveguide with two rectangular baffles and a U-Shaped Ring Resonator (USRR). The finite element method was used to theoretically investigate the sensor’s transmission characteristics. Th...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-05-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/13/5/750 |
| _version_ | 1797497796246372352 |
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| author | Xiaoyu Zhang Shubin Yan Jilai Liu Yifeng Ren Yi Zhang Lifang Shen |
| author_facet | Xiaoyu Zhang Shubin Yan Jilai Liu Yifeng Ren Yi Zhang Lifang Shen |
| author_sort | Xiaoyu Zhang |
| collection | DOAJ |
| description | In this study, a novel refractive index sensor structure was designed consisting of a metal-insulator-metal (MIM) waveguide with two rectangular baffles and a U-Shaped Ring Resonator (USRR). The finite element method was used to theoretically investigate the sensor’s transmission characteristics. The simulation results show that Fano resonance is a sharp asymmetric resonance generated by the interaction between the discrete narrow-band mode and the successive wide-band mode. Next, the formation of broadband and narrowband is further studied, and finally the key factors affecting the performance of the sensor are obtained. The best sensitivity of this refractive-index sensor is 2020 nm/RIU and the figure of merit (FOM) is 53.16. The presented sensor has the potential to be useful in nanophotonic sensing applications. |
| first_indexed | 2024-03-10T03:24:23Z |
| format | Article |
| id | doaj.art-c3ef259d06b24666b70075e5b5012824 |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-10T03:24:23Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-c3ef259d06b24666b70075e5b50128242023-11-23T12:12:35ZengMDPI AGMicromachines2072-666X2022-05-0113575010.3390/mi13050750Refractive Index Sensor Based on a Metal-Insulator-Metal Bus Waveguide Coupled with a U-Shaped Ring ResonatorXiaoyu Zhang0Shubin Yan1Jilai Liu2Yifeng Ren3Yi Zhang4Lifang Shen5School 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 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, ChinaIn this study, a novel refractive index sensor structure was designed consisting of a metal-insulator-metal (MIM) waveguide with two rectangular baffles and a U-Shaped Ring Resonator (USRR). The finite element method was used to theoretically investigate the sensor’s transmission characteristics. The simulation results show that Fano resonance is a sharp asymmetric resonance generated by the interaction between the discrete narrow-band mode and the successive wide-band mode. Next, the formation of broadband and narrowband is further studied, and finally the key factors affecting the performance of the sensor are obtained. The best sensitivity of this refractive-index sensor is 2020 nm/RIU and the figure of merit (FOM) is 53.16. The presented sensor has the potential to be useful in nanophotonic sensing applications.https://www.mdpi.com/2072-666X/13/5/750Fano resonanceSPPsU-shaped ring resonatorsensormetal-insulator-metal |
| spellingShingle | Xiaoyu Zhang Shubin Yan Jilai Liu Yifeng Ren Yi Zhang Lifang Shen Refractive Index Sensor Based on a Metal-Insulator-Metal Bus Waveguide Coupled with a U-Shaped Ring Resonator Micromachines Fano resonance SPPs U-shaped ring resonator sensor metal-insulator-metal |
| title | Refractive Index Sensor Based on a Metal-Insulator-Metal Bus Waveguide Coupled with a U-Shaped Ring Resonator |
| title_full | Refractive Index Sensor Based on a Metal-Insulator-Metal Bus Waveguide Coupled with a U-Shaped Ring Resonator |
| title_fullStr | Refractive Index Sensor Based on a Metal-Insulator-Metal Bus Waveguide Coupled with a U-Shaped Ring Resonator |
| title_full_unstemmed | Refractive Index Sensor Based on a Metal-Insulator-Metal Bus Waveguide Coupled with a U-Shaped Ring Resonator |
| title_short | Refractive Index Sensor Based on a Metal-Insulator-Metal Bus Waveguide Coupled with a U-Shaped Ring Resonator |
| title_sort | refractive index sensor based on a metal insulator metal bus waveguide coupled with a u shaped ring resonator |
| topic | Fano resonance SPPs U-shaped ring resonator sensor metal-insulator-metal |
| url | https://www.mdpi.com/2072-666X/13/5/750 |
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