Hybrid plasmonic fiber-optic sensors
With the increasing demand of achieving comprehensive perception in every aspect of life, optical fibers have shown great potential in various applications due to their highly-sensitive, highly-integrated, flexible and real-time sensing capabilities. Among various sensing mechanisms, plasmonics base...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | English |
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2021
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| Online Access: | https://hdl.handle.net/10356/145848 |
| _version_ | 1811693023154667520 |
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| author | Qi, Miao Zhang, Nancy Meng Ying Li, Kaiwei Tjin, Swee Chuan Wei, Lei |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Qi, Miao Zhang, Nancy Meng Ying Li, Kaiwei Tjin, Swee Chuan Wei, Lei |
| author_sort | Qi, Miao |
| collection | NTU |
| description | With the increasing demand of achieving comprehensive perception in every aspect of life, optical fibers have shown great potential in various applications due to their highly-sensitive, highly-integrated, flexible and real-time sensing capabilities. Among various sensing mechanisms, plasmonics based fiber-optic sensors provide remarkable sensitivity benefiting from their outstanding plasmon-matter interaction. Therefore, surface plasmon resonance (SPR) and localized SPR (LSPR)-based hybrid fiber-optic sensors have captured intensive research attention. Conventionally, SPR- or LSPR-based hybrid fiber-optic sensors rely on the resonant electron oscillations of thin metallic films or metallic nanoparticles functionalized on fiber surfaces. Coupled with the new advances in functional nanomaterials as well as fiber structure design and fabrication in recent years, new solutions continue to emerge to further improve the fiber-optic plasmonic sensors' performances in terms of sensitivity, specificity and biocompatibility. For instance, 2D materials like graphene can enhance the surface plasmon intensity at the metallic film surface due to the plasmon-matter interaction. Two-dimensional (2D) morphology of transition metal oxides can be doped with abundant free electrons to facilitate intrinsic plasmonics in visible or near-infrared frequencies, realizing exceptional field confinement and high sensitivity detection of analyte molecules. Gold nanoparticles capped with macrocyclic supramolecules show excellent selectivity to target biomolecules and ultralow limits of detection. Moreover, specially designed microstructured optical fibers are able to achieve high birefringence that can suppress the output inaccuracy induced by polarization crosstalk and meanwhile deliver promising sensitivity. This review aims to reveal and explore the frontiers of such hybrid plasmonic fiber-optic platforms in various sensing applications. |
| first_indexed | 2024-10-01T06:45:05Z |
| format | Journal Article |
| id | ntu-10356/145848 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:45:05Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1458482021-01-11T09:25:25Z Hybrid plasmonic fiber-optic sensors Qi, Miao Zhang, Nancy Meng Ying Li, Kaiwei Tjin, Swee Chuan Wei, Lei School of Electrical and Electronic Engineering The Photonics Institute Engineering::Electrical and electronic engineering Optical Fibers Hybrid Plasmonic Sensors With the increasing demand of achieving comprehensive perception in every aspect of life, optical fibers have shown great potential in various applications due to their highly-sensitive, highly-integrated, flexible and real-time sensing capabilities. Among various sensing mechanisms, plasmonics based fiber-optic sensors provide remarkable sensitivity benefiting from their outstanding plasmon-matter interaction. Therefore, surface plasmon resonance (SPR) and localized SPR (LSPR)-based hybrid fiber-optic sensors have captured intensive research attention. Conventionally, SPR- or LSPR-based hybrid fiber-optic sensors rely on the resonant electron oscillations of thin metallic films or metallic nanoparticles functionalized on fiber surfaces. Coupled with the new advances in functional nanomaterials as well as fiber structure design and fabrication in recent years, new solutions continue to emerge to further improve the fiber-optic plasmonic sensors' performances in terms of sensitivity, specificity and biocompatibility. For instance, 2D materials like graphene can enhance the surface plasmon intensity at the metallic film surface due to the plasmon-matter interaction. Two-dimensional (2D) morphology of transition metal oxides can be doped with abundant free electrons to facilitate intrinsic plasmonics in visible or near-infrared frequencies, realizing exceptional field confinement and high sensitivity detection of analyte molecules. Gold nanoparticles capped with macrocyclic supramolecules show excellent selectivity to target biomolecules and ultralow limits of detection. Moreover, specially designed microstructured optical fibers are able to achieve high birefringence that can suppress the output inaccuracy induced by polarization crosstalk and meanwhile deliver promising sensitivity. This review aims to reveal and explore the frontiers of such hybrid plasmonic fiber-optic platforms in various sensing applications. Ministry of Education (MOE) National Research Foundation (NRF) Published version This work was supported in part by the Singapore Ministry of Education Academic Research Fund Tier 2 (MOE2019-T2-2-127), the Singapore Ministry of Education Academic Research Fund Tier 1 (MOE2019-T1-001-103 and MOE2019-T1-001-111) and the Singapore National Research Foundation Competitive Research Program (NRF-CRP18-2017-02). This work was also supported in part by Nanyang Technological University 2021-01-11T09:25:24Z 2021-01-11T09:25:24Z 2020 Journal Article Qi, M., Zhang, N. M. Y., Li, K., Tjin, S. C., & Wei, L. (2020). Hybrid plasmonic fiber-optic sensors. Sensors, 20(11), 3266-. doi:10.3390/s20113266 1424-8220 https://hdl.handle.net/10356/145848 10.3390/s20113266 32521770 2-s2.0-85086242632 11 20 en MOE2019-T2-2-127 MOE2019-T1-001-103 NRF-CRP18-2017-02 MOE2019-T1-001-111 Sensors © 2020 The Authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). application/pdf |
| spellingShingle | Engineering::Electrical and electronic engineering Optical Fibers Hybrid Plasmonic Sensors Qi, Miao Zhang, Nancy Meng Ying Li, Kaiwei Tjin, Swee Chuan Wei, Lei Hybrid plasmonic fiber-optic sensors |
| title | Hybrid plasmonic fiber-optic sensors |
| title_full | Hybrid plasmonic fiber-optic sensors |
| title_fullStr | Hybrid plasmonic fiber-optic sensors |
| title_full_unstemmed | Hybrid plasmonic fiber-optic sensors |
| title_short | Hybrid plasmonic fiber-optic sensors |
| title_sort | hybrid plasmonic fiber optic sensors |
| topic | Engineering::Electrical and electronic engineering Optical Fibers Hybrid Plasmonic Sensors |
| url | https://hdl.handle.net/10356/145848 |
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