Optimizing Stability and Performance of Silver-Based Grating Structures for Surface Plasmon Resonance Sensors
The use of surface plasmon resonance sensors allows for the fabrication of highly sensitive, label-free analytical devices. This contribution reports on a grating coupler to enable surface plasmon resonance studies using silver on silicon oxide technology to build long-term stable plasmonic structur...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/23/15/6743 |
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| author | Pongsak Sarapukdee Christian Spenner Dirk Schulz Stefan Palzer |
| author_facet | Pongsak Sarapukdee Christian Spenner Dirk Schulz Stefan Palzer |
| author_sort | Pongsak Sarapukdee |
| collection | DOAJ |
| description | The use of surface plasmon resonance sensors allows for the fabrication of highly sensitive, label-free analytical devices. This contribution reports on a grating coupler to enable surface plasmon resonance studies using silver on silicon oxide technology to build long-term stable plasmonic structures for biological molecule sensing. The structural parameters were simulated and the corresponding simulation model was optimized based on the experimental results to improve its reliability. Based on the model, optimized grating nanostructures were fabricated on an oxidized silicon wafer with different structural parameters and characterized using a dedicated optical setup and scanning electron microscopy. The combined theoretical and experimental results show that the most relevant refractive index range for biological samples from 1.32–1.46 may conveniently be covered with a highest sensitivity of 128.85°/RIU. |
| first_indexed | 2024-03-11T00:17:52Z |
| format | Article |
| id | doaj.art-de4ba2949e0949fc83e9de2242238f6d |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-11T00:17:52Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-de4ba2949e0949fc83e9de2242238f6d2023-11-18T23:33:52ZengMDPI AGSensors1424-82202023-07-012315674310.3390/s23156743Optimizing Stability and Performance of Silver-Based Grating Structures for Surface Plasmon Resonance SensorsPongsak Sarapukdee0Christian Spenner1Dirk Schulz2Stefan Palzer3Department of Electrical Engineering and Information Technology, Technical University Dortmund, Friedrich-Wöhler-Weg 4, 44227 Dortmund, GermanyDepartment of Electrical Engineering and Information Technology, Technical University Dortmund, Friedrich-Wöhler-Weg 4, 44227 Dortmund, GermanyDepartment of Electrical Engineering and Information Technology, Technical University Dortmund, Friedrich-Wöhler-Weg 4, 44227 Dortmund, GermanyDepartment of Electrical Engineering and Information Technology, Technical University Dortmund, Friedrich-Wöhler-Weg 4, 44227 Dortmund, GermanyThe use of surface plasmon resonance sensors allows for the fabrication of highly sensitive, label-free analytical devices. This contribution reports on a grating coupler to enable surface plasmon resonance studies using silver on silicon oxide technology to build long-term stable plasmonic structures for biological molecule sensing. The structural parameters were simulated and the corresponding simulation model was optimized based on the experimental results to improve its reliability. Based on the model, optimized grating nanostructures were fabricated on an oxidized silicon wafer with different structural parameters and characterized using a dedicated optical setup and scanning electron microscopy. The combined theoretical and experimental results show that the most relevant refractive index range for biological samples from 1.32–1.46 may conveniently be covered with a highest sensitivity of 128.85°/RIU.https://www.mdpi.com/1424-8220/23/15/6743plasmon resonancemicrofabricationgrating couplersimulation modellabel-freeprotective layer |
| spellingShingle | Pongsak Sarapukdee Christian Spenner Dirk Schulz Stefan Palzer Optimizing Stability and Performance of Silver-Based Grating Structures for Surface Plasmon Resonance Sensors Sensors plasmon resonance microfabrication grating coupler simulation model label-free protective layer |
| title | Optimizing Stability and Performance of Silver-Based Grating Structures for Surface Plasmon Resonance Sensors |
| title_full | Optimizing Stability and Performance of Silver-Based Grating Structures for Surface Plasmon Resonance Sensors |
| title_fullStr | Optimizing Stability and Performance of Silver-Based Grating Structures for Surface Plasmon Resonance Sensors |
| title_full_unstemmed | Optimizing Stability and Performance of Silver-Based Grating Structures for Surface Plasmon Resonance Sensors |
| title_short | Optimizing Stability and Performance of Silver-Based Grating Structures for Surface Plasmon Resonance Sensors |
| title_sort | optimizing stability and performance of silver based grating structures for surface plasmon resonance sensors |
| topic | plasmon resonance microfabrication grating coupler simulation model label-free protective layer |
| url | https://www.mdpi.com/1424-8220/23/15/6743 |
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