Resolution Enhancement in Surface Plasmon Resonance Sensor Based on Waveguide Coupled Mode by Combining a Bimetallic Approach
In this study, we present and demonstrate a new route to a great enhancement in resolution of surface plasmon resonance sensors. Basically, our approach combines a waveguide coupled plasmonic mode and a kind of Au/Ag bimetallic enhancement concept. Theoretical modeling was carried out by solving Fre...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2010-12-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/10/12/11390/ |
| _version_ | 1798041715630669824 |
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| author | Won Mok Kim Dae-Yong Jeong Kyeong-Seok Lee Taek Sung Lee Ju Myeong Son |
| author_facet | Won Mok Kim Dae-Yong Jeong Kyeong-Seok Lee Taek Sung Lee Ju Myeong Son |
| author_sort | Won Mok Kim |
| collection | DOAJ |
| description | In this study, we present and demonstrate a new route to a great enhancement in resolution of surface plasmon resonance sensors. Basically, our approach combines a waveguide coupled plasmonic mode and a kind of Au/Ag bimetallic enhancement concept. Theoretical modeling was carried out by solving Fresnel equations for the multilayer stack of prism/Ag inner-metal layer/dielectric waveguide/Au outer-metal layer. The inner Ag layer couples incident light to a guided wave and makes more fields effectively concentrated on the outer Au surface. A substantial enhancement in resolution was experimentally verified for the model stack using a ZnS-SiO2 waveguide layer. |
| first_indexed | 2024-04-11T22:25:24Z |
| format | Article |
| id | doaj.art-40e3ece7443d4f10823a069d6ec92643 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T22:25:24Z |
| publishDate | 2010-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-40e3ece7443d4f10823a069d6ec926432022-12-22T03:59:43ZengMDPI AGSensors1424-82202010-12-011012113901139910.3390/s101211390Resolution Enhancement in Surface Plasmon Resonance Sensor Based on Waveguide Coupled Mode by Combining a Bimetallic ApproachWon Mok KimDae-Yong JeongKyeong-Seok LeeTaek Sung LeeJu Myeong SonIn this study, we present and demonstrate a new route to a great enhancement in resolution of surface plasmon resonance sensors. Basically, our approach combines a waveguide coupled plasmonic mode and a kind of Au/Ag bimetallic enhancement concept. Theoretical modeling was carried out by solving Fresnel equations for the multilayer stack of prism/Ag inner-metal layer/dielectric waveguide/Au outer-metal layer. The inner Ag layer couples incident light to a guided wave and makes more fields effectively concentrated on the outer Au surface. A substantial enhancement in resolution was experimentally verified for the model stack using a ZnS-SiO2 waveguide layer.http://www.mdpi.com/1424-8220/10/12/11390/waveguide coupled surface plasmon resonancebimetallic approachhigh resolution SPR sensor |
| spellingShingle | Won Mok Kim Dae-Yong Jeong Kyeong-Seok Lee Taek Sung Lee Ju Myeong Son Resolution Enhancement in Surface Plasmon Resonance Sensor Based on Waveguide Coupled Mode by Combining a Bimetallic Approach Sensors waveguide coupled surface plasmon resonance bimetallic approach high resolution SPR sensor |
| title | Resolution Enhancement in Surface Plasmon Resonance Sensor Based on Waveguide Coupled Mode by Combining a Bimetallic Approach |
| title_full | Resolution Enhancement in Surface Plasmon Resonance Sensor Based on Waveguide Coupled Mode by Combining a Bimetallic Approach |
| title_fullStr | Resolution Enhancement in Surface Plasmon Resonance Sensor Based on Waveguide Coupled Mode by Combining a Bimetallic Approach |
| title_full_unstemmed | Resolution Enhancement in Surface Plasmon Resonance Sensor Based on Waveguide Coupled Mode by Combining a Bimetallic Approach |
| title_short | Resolution Enhancement in Surface Plasmon Resonance Sensor Based on Waveguide Coupled Mode by Combining a Bimetallic Approach |
| title_sort | resolution enhancement in surface plasmon resonance sensor based on waveguide coupled mode by combining a bimetallic approach |
| topic | waveguide coupled surface plasmon resonance bimetallic approach high resolution SPR sensor |
| url | http://www.mdpi.com/1424-8220/10/12/11390/ |
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