Vertical split-ring resonator based nanoplasmonic sensor

Pin Chieh Wu; Greg Sun; Wei Ting Chen; Kuang-Yu Yang; Yao-Wei Huang; Yi-Hao Chen; Hsiang Lin Huang; Wei-Lun Hsu; Hai Pang Chiang; Din Ping Tsai

doi:10.1063/1.4891234

Vertical split-ring resonator based nanoplasmonic sensor

Pin Chieh Wu, Greg Sun, Wei Ting Chen, Kuang-Yu Yang, Yao-Wei Huang, Yi-Hao Chen, Hsiang Lin Huang, Wei-Lun Hsu, Hai Pang Chiang^*, Din Ping Tsai

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

108 Citations (Scopus)

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Abstract

Split-ring resonators (SRRs) have been the subject of investigation as plasmonic sensors that operate by sensing plasmon resonance shift δλ when exposed to a medium with a refractive index change δn. However, conventional planar SRRs have their plasmon fields spread into the substrates, reducing accessible sensing volume and its sensing performance. Such a limitation can be eradicated with vertical SRRs in which the plasmon fields localized in SRR gaps are lifted off from the substrate, allowing for greatly enhanced sensitivity. Here, we demonstrate the highest sensitivity among reported SRR-based sensors in optical frequencies.

Original language	English
Article number	033105
Journal	Applied Physics Letters
Volume	105
Issue number	3
DOIs	https://doi.org/10.1063/1.4891234
Publication status	Published - 21 Jul 2014
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

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title = "Vertical split-ring resonator based nanoplasmonic sensor",

abstract = "Split-ring resonators (SRRs) have been the subject of investigation as plasmonic sensors that operate by sensing plasmon resonance shift δλ when exposed to a medium with a refractive index change δn. However, conventional planar SRRs have their plasmon fields spread into the substrates, reducing accessible sensing volume and its sensing performance. Such a limitation can be eradicated with vertical SRRs in which the plasmon fields localized in SRR gaps are lifted off from the substrate, allowing for greatly enhanced sensitivity. Here, we demonstrate the highest sensitivity among reported SRR-based sensors in optical frequencies.",

author = "Wu, {Pin Chieh} and Greg Sun and Chen, {Wei Ting} and Kuang-Yu Yang and Yao-Wei Huang and Yi-Hao Chen and Huang, {Hsiang Lin} and Wei-Lun Hsu and Chiang, {Hai Pang} and Tsai, {Din Ping}",

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AU - Wu, Pin Chieh

AU - Sun, Greg

AU - Chen, Wei Ting

AU - Yang, Kuang-Yu

AU - Huang, Yao-Wei

AU - Chen, Yi-Hao

AU - Huang, Hsiang Lin

AU - Hsu, Wei-Lun

AU - Chiang, Hai Pang

AU - Tsai, Din Ping

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

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N2 - Split-ring resonators (SRRs) have been the subject of investigation as plasmonic sensors that operate by sensing plasmon resonance shift δλ when exposed to a medium with a refractive index change δn. However, conventional planar SRRs have their plasmon fields spread into the substrates, reducing accessible sensing volume and its sensing performance. Such a limitation can be eradicated with vertical SRRs in which the plasmon fields localized in SRR gaps are lifted off from the substrate, allowing for greatly enhanced sensitivity. Here, we demonstrate the highest sensitivity among reported SRR-based sensors in optical frequencies.

AB - Split-ring resonators (SRRs) have been the subject of investigation as plasmonic sensors that operate by sensing plasmon resonance shift δλ when exposed to a medium with a refractive index change δn. However, conventional planar SRRs have their plasmon fields spread into the substrates, reducing accessible sensing volume and its sensing performance. Such a limitation can be eradicated with vertical SRRs in which the plasmon fields localized in SRR gaps are lifted off from the substrate, allowing for greatly enhanced sensitivity. Here, we demonstrate the highest sensitivity among reported SRR-based sensors in optical frequencies.

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JF - Applied Physics Letters

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Vertical split-ring resonator based nanoplasmonic sensor

Abstract

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