Terahertz Sensor Study Based on Spoof Surface Plasmon Polaritons
The spoof surface plasmon polaritons (SSPPs) structure can be used as a sensor in THz region for the biosensing. The accuracy of resonance and amplitude for sensor is very important for biosensing. The momentum matching of SSPPs determines the resonance position and the gap distance determines the a...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2020/2504626 |
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| author | Ruiqi Zhao Guizhen Lu Hongcheng Yin Jingjing Liang Dongdong Zeng Huaibao Xiao |
| author_facet | Ruiqi Zhao Guizhen Lu Hongcheng Yin Jingjing Liang Dongdong Zeng Huaibao Xiao |
| author_sort | Ruiqi Zhao |
| collection | DOAJ |
| description | The spoof surface plasmon polaritons (SSPPs) structure can be used as a sensor in THz region for the biosensing. The accuracy of resonance and amplitude for sensor is very important for biosensing. The momentum matching of SSPPs determines the resonance position and the gap distance determines the amplitude. For the biomolecular sensing, the sample is positioned between the prism base and the SSPPs structure. The momentum matching condition at the current study does not consider the effect of sample refractive index and the resonance position has a significant error. Here the correction is made to the momentum matching condition which considers the effect of the sample refractive index. A comparative study of surface plasmon resonance (SPR) sensing performance based on frequency and angle variations shows that the sensing sensitivity for frequency region is superior to that of angle region; in the meanwhile, as an application of biosensors, we have detected different types of brain lesions in the frequency range. Furthermore, the reflection amplitude is related to gap size between the prism and SSPPs. The relationship of gap size and reflection amplitude is studied. By using the relationship between gap size and reflection amplitude, the amplitudes at different frequencies or incident angles for different refractivities have the same reflection dips compared to the other published results. The simulation is performed and the results proved the theory. |
| format | Article |
| id | doaj-art-d895780b481441f5b89dc96ffe59b6bf |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-d895780b481441f5b89dc96ffe59b6bf2025-02-03T01:28:03ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772020-01-01202010.1155/2020/25046262504626Terahertz Sensor Study Based on Spoof Surface Plasmon PolaritonsRuiqi Zhao0Guizhen Lu1Hongcheng Yin2Jingjing Liang3Dongdong Zeng4Huaibao Xiao5College of Electronic Engineering, Communication University of China, Beijing 100024, ChinaCollege of Electronic Engineering, Communication University of China, Beijing 100024, ChinaBeijing Institute of Environmental Laboratory, Beijing 100039, ChinaCollege of Electronic Engineering, Communication University of China, Beijing 100024, ChinaCollege of Electronic Engineering, Communication University of China, Beijing 100024, ChinaCollege of Electronic Engineering, Communication University of China, Beijing 100024, ChinaThe spoof surface plasmon polaritons (SSPPs) structure can be used as a sensor in THz region for the biosensing. The accuracy of resonance and amplitude for sensor is very important for biosensing. The momentum matching of SSPPs determines the resonance position and the gap distance determines the amplitude. For the biomolecular sensing, the sample is positioned between the prism base and the SSPPs structure. The momentum matching condition at the current study does not consider the effect of sample refractive index and the resonance position has a significant error. Here the correction is made to the momentum matching condition which considers the effect of the sample refractive index. A comparative study of surface plasmon resonance (SPR) sensing performance based on frequency and angle variations shows that the sensing sensitivity for frequency region is superior to that of angle region; in the meanwhile, as an application of biosensors, we have detected different types of brain lesions in the frequency range. Furthermore, the reflection amplitude is related to gap size between the prism and SSPPs. The relationship of gap size and reflection amplitude is studied. By using the relationship between gap size and reflection amplitude, the amplitudes at different frequencies or incident angles for different refractivities have the same reflection dips compared to the other published results. The simulation is performed and the results proved the theory.http://dx.doi.org/10.1155/2020/2504626 |
| spellingShingle | Ruiqi Zhao Guizhen Lu Hongcheng Yin Jingjing Liang Dongdong Zeng Huaibao Xiao Terahertz Sensor Study Based on Spoof Surface Plasmon Polaritons International Journal of Antennas and Propagation |
| title | Terahertz Sensor Study Based on Spoof Surface Plasmon Polaritons |
| title_full | Terahertz Sensor Study Based on Spoof Surface Plasmon Polaritons |
| title_fullStr | Terahertz Sensor Study Based on Spoof Surface Plasmon Polaritons |
| title_full_unstemmed | Terahertz Sensor Study Based on Spoof Surface Plasmon Polaritons |
| title_short | Terahertz Sensor Study Based on Spoof Surface Plasmon Polaritons |
| title_sort | terahertz sensor study based on spoof surface plasmon polaritons |
| url | http://dx.doi.org/10.1155/2020/2504626 |
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