Performance Analysis of a Kretschmann-Based Ag-ITO-Au Surface Plasmon Resonance Sensor through Numerical Simulations
Variations of a Kretschmann-structure-based Ag-indium tin oxide- (ITO-) Au surface plasmon resonance (SPR) sensor were explored to improve its sensitivity. The sensor structure was optimised, and its characteristics were studied through numerical simulations. The chip structure that comprised 20 nm...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | International Journal of Optics |
| Online Access: | http://dx.doi.org/10.1155/2021/9975877 |
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| _version_ | 1832558073850363904 |
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| author | Liang Zhang Jian’an He Tao Li Xiaocong Wu Dayong Gu Sixiang Zhang Ying Ye |
| author_facet | Liang Zhang Jian’an He Tao Li Xiaocong Wu Dayong Gu Sixiang Zhang Ying Ye |
| author_sort | Liang Zhang |
| collection | DOAJ |
| description | Variations of a Kretschmann-structure-based Ag-indium tin oxide- (ITO-) Au surface plasmon resonance (SPR) sensor were explored to improve its sensitivity. The sensor structure was optimised, and its characteristics were studied through numerical simulations. The chip structure that comprised 20 nm Ag/30 nm ITO/10 nm Au yielded the best sensing performance, wherein the angular sensitivity could reach 197.6° RIU−1 and the figure of merit was 43.4 RIU−1. These performance parameters are nearly three times higher than those of Ag/Au bimetallic resonance sensors. Furthermore, an adhesive Cr layer and two-dimensional graphene were incorporated into this sensor structure to explore their impact on the performance. The results demonstrated that the Cr layer significantly weakened the sensor performance, whereas graphene did not produce the expected enhancement effect on this structure. If simply adding a layer to a Au/Ag sensor can produce a three-fold improvement in its performance, then its economic and scientific benefits are potentially significant and widespread. |
| format | Article |
| id | doaj-art-f18d812f5ddf4aea83acca173732a202 |
| institution | Kabale University |
| issn | 1687-9392 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Optics |
| spelling | doaj-art-f18d812f5ddf4aea83acca173732a2022025-02-03T01:33:18ZengWileyInternational Journal of Optics1687-93922021-01-01202110.1155/2021/9975877Performance Analysis of a Kretschmann-Based Ag-ITO-Au Surface Plasmon Resonance Sensor through Numerical SimulationsLiang Zhang0Jian’an He1Tao Li2Xiaocong Wu3Dayong Gu4Sixiang Zhang5Ying Ye6School of Mechanical EngineeringCentral Laboratory of Health QuarantineSchool of Mechanical EngineeringSchool of Public HealthDepartment of Clinical Laboratory, Shenzhen Institute of Translational MedicineSchool of Mechanical EngineeringShenzhen International Travel Health Care CenterVariations of a Kretschmann-structure-based Ag-indium tin oxide- (ITO-) Au surface plasmon resonance (SPR) sensor were explored to improve its sensitivity. The sensor structure was optimised, and its characteristics were studied through numerical simulations. The chip structure that comprised 20 nm Ag/30 nm ITO/10 nm Au yielded the best sensing performance, wherein the angular sensitivity could reach 197.6° RIU−1 and the figure of merit was 43.4 RIU−1. These performance parameters are nearly three times higher than those of Ag/Au bimetallic resonance sensors. Furthermore, an adhesive Cr layer and two-dimensional graphene were incorporated into this sensor structure to explore their impact on the performance. The results demonstrated that the Cr layer significantly weakened the sensor performance, whereas graphene did not produce the expected enhancement effect on this structure. If simply adding a layer to a Au/Ag sensor can produce a three-fold improvement in its performance, then its economic and scientific benefits are potentially significant and widespread.http://dx.doi.org/10.1155/2021/9975877 |
| spellingShingle | Liang Zhang Jian’an He Tao Li Xiaocong Wu Dayong Gu Sixiang Zhang Ying Ye Performance Analysis of a Kretschmann-Based Ag-ITO-Au Surface Plasmon Resonance Sensor through Numerical Simulations International Journal of Optics |
| title | Performance Analysis of a Kretschmann-Based Ag-ITO-Au Surface Plasmon Resonance Sensor through Numerical Simulations |
| title_full | Performance Analysis of a Kretschmann-Based Ag-ITO-Au Surface Plasmon Resonance Sensor through Numerical Simulations |
| title_fullStr | Performance Analysis of a Kretschmann-Based Ag-ITO-Au Surface Plasmon Resonance Sensor through Numerical Simulations |
| title_full_unstemmed | Performance Analysis of a Kretschmann-Based Ag-ITO-Au Surface Plasmon Resonance Sensor through Numerical Simulations |
| title_short | Performance Analysis of a Kretschmann-Based Ag-ITO-Au Surface Plasmon Resonance Sensor through Numerical Simulations |
| title_sort | performance analysis of a kretschmann based ag ito au surface plasmon resonance sensor through numerical simulations |
| url | http://dx.doi.org/10.1155/2021/9975877 |
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