Performance evaluation of a bilayer SPR-based fiber optic RI sensor with TiO2 using FDTD solutions
We proposed a new bilayer surface plasmon resonance-based fiber-optic refractive index sensor with silver and an over-layer of TiO2. We numerically investigated the optimal thickness of TiO2 over-layer in the proposed sensor and compared its performance to that based on typical bimetallic layers of...
| Main Authors: | , , , , , |
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| Format: | Article |
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SpringerOpen
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/34875/ |
| _version_ | 1848847895828103168 |
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| author | Al-Qazwini, Yusser Muhammad Noor, Ahmad Shukri Yadav, T. K. Yaacob, Mohd. Hanif Harun, Sulaiman Wadi Mahdi, Mohd Adzir |
| author_facet | Al-Qazwini, Yusser Muhammad Noor, Ahmad Shukri Yadav, T. K. Yaacob, Mohd. Hanif Harun, Sulaiman Wadi Mahdi, Mohd Adzir |
| author_sort | Al-Qazwini, Yusser |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | We proposed a new bilayer surface plasmon resonance-based fiber-optic refractive index sensor with silver and an over-layer of TiO2. We numerically investigated the optimal thickness of TiO2 over-layer in the proposed sensor and compared its performance to that based on typical bimetallic layers of silver-and-gold in the aqueous media using finite-difference time domain approach. We show that the use of TiO2 over-layer greatly improves the sensor performance in terms of sensitivity and signal-to-noise ratio compared to that with gold as the over-layer. Not only does the TiO2 over-layer offer a cost-effective alternative to gold for overcoming the oxidation problem, but also it allows resonance wavelength-tunability. |
| first_indexed | 2025-11-15T09:25:53Z |
| format | Article |
| id | upm-34875 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T09:25:53Z |
| publishDate | 2014 |
| publisher | SpringerOpen |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-348752015-12-23T06:45:16Z http://psasir.upm.edu.my/id/eprint/34875/ Performance evaluation of a bilayer SPR-based fiber optic RI sensor with TiO2 using FDTD solutions Al-Qazwini, Yusser Muhammad Noor, Ahmad Shukri Yadav, T. K. Yaacob, Mohd. Hanif Harun, Sulaiman Wadi Mahdi, Mohd Adzir We proposed a new bilayer surface plasmon resonance-based fiber-optic refractive index sensor with silver and an over-layer of TiO2. We numerically investigated the optimal thickness of TiO2 over-layer in the proposed sensor and compared its performance to that based on typical bimetallic layers of silver-and-gold in the aqueous media using finite-difference time domain approach. We show that the use of TiO2 over-layer greatly improves the sensor performance in terms of sensitivity and signal-to-noise ratio compared to that with gold as the over-layer. Not only does the TiO2 over-layer offer a cost-effective alternative to gold for overcoming the oxidation problem, but also it allows resonance wavelength-tunability. SpringerOpen 2014-12 Article PeerReviewed Al-Qazwini, Yusser and Muhammad Noor, Ahmad Shukri and Yadav, T. K. and Yaacob, Mohd. Hanif and Harun, Sulaiman Wadi and Mahdi, Mohd Adzir (2014) Performance evaluation of a bilayer SPR-based fiber optic RI sensor with TiO2 using FDTD solutions. Photonic Sensors, 4 (4). pp. 289-294. ISSN 1674-9251; ESSN: 2190-7439 http://link.springer.com/article/10.1007/s13320-014-0207-y 10.1007/s13320-014-0207-y |
| spellingShingle | Al-Qazwini, Yusser Muhammad Noor, Ahmad Shukri Yadav, T. K. Yaacob, Mohd. Hanif Harun, Sulaiman Wadi Mahdi, Mohd Adzir Performance evaluation of a bilayer SPR-based fiber optic RI sensor with TiO2 using FDTD solutions |
| title | Performance evaluation of a bilayer SPR-based fiber optic RI sensor with TiO2 using FDTD solutions |
| title_full | Performance evaluation of a bilayer SPR-based fiber optic RI sensor with TiO2 using FDTD solutions |
| title_fullStr | Performance evaluation of a bilayer SPR-based fiber optic RI sensor with TiO2 using FDTD solutions |
| title_full_unstemmed | Performance evaluation of a bilayer SPR-based fiber optic RI sensor with TiO2 using FDTD solutions |
| title_short | Performance evaluation of a bilayer SPR-based fiber optic RI sensor with TiO2 using FDTD solutions |
| title_sort | performance evaluation of a bilayer spr-based fiber optic ri sensor with tio2 using fdtd solutions |
| url | http://psasir.upm.edu.my/id/eprint/34875/ http://psasir.upm.edu.my/id/eprint/34875/ http://psasir.upm.edu.my/id/eprint/34875/ |