Fano resonance enhanced surface plasmon resonance sensors operating in near-infrared

In the phase-sensitivity-based surface plasmon resonance (SPR) sensing scheme, the highest phase jump usually happens at the darkness or quasi-darkness reflection point, which results in low power for detection. To overcome such a limitation, in this paper, a waveguide-coupled SPR configuration is p...

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Main Authors: Huang, Tianye, Zeng, Shuwen, Zhao, Xiang, Cheng, Zhuo, Shum, Perry Ping
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2018
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Online Access:https://hdl.handle.net/10356/89580
http://hdl.handle.net/10220/46299
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-895802020-03-07T14:02:38Z Fano resonance enhanced surface plasmon resonance sensors operating in near-infrared Huang, Tianye Zeng, Shuwen Zhao, Xiang Cheng, Zhuo Shum, Perry Ping School of Electrical and Electronic Engineering Optical Sensor DRNTU::Engineering::Electrical and electronic engineering Surface Plasmon Resonance In the phase-sensitivity-based surface plasmon resonance (SPR) sensing scheme, the highest phase jump usually happens at the darkness or quasi-darkness reflection point, which results in low power for detection. To overcome such a limitation, in this paper, a waveguide-coupled SPR configuration is proposed to work at near-infrared. The coupling between surface plasmon polariton (SPP) mode and photonic waveguide (PWG) mode results in electromagnetically induced transparency (EIT) and asymmetric Fano resonance (FR). Near the resonance, the differential phase between p-polarized and s-polarized incident waves experience drastic variation upon change of the surrounding refractive index. More importantly, since the FR occurs at the resonance slope of SPP mode, the corresponding phase change is accompanied with relatively high reflectivity, which is essential for signal-to-noise ratio (SNR) enhancement and power consumption reduction. Phase sensitivity up to 106 deg/RIU order with a minimum SPR reflectivity higher than 20% is achieved. The proposed scheme provides an alternative approach for high-performance sensing applications using FR. Published version 2018-10-12T05:21:44Z 2019-12-06T17:28:50Z 2018-10-12T05:21:44Z 2019-12-06T17:28:50Z 2018 Journal Article Huang, T., Zeng, S., Zhao, X., Cheng, Z., & Shum, P. (2018). Fano Resonance Enhanced Surface Plasmon Resonance Sensors Operating in Near-Infrared. Photonics, 5(3), 23-. doi:10.3390/photonics5030023 https://hdl.handle.net/10356/89580 http://hdl.handle.net/10220/46299 10.3390/photonics5030023 en Photonics © 2018 by The Author(s). 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/). 11 p. application/pdf
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic Optical Sensor
DRNTU::Engineering::Electrical and electronic engineering
Surface Plasmon Resonance
spellingShingle Optical Sensor
DRNTU::Engineering::Electrical and electronic engineering
Surface Plasmon Resonance
Huang, Tianye
Zeng, Shuwen
Zhao, Xiang
Cheng, Zhuo
Shum, Perry Ping
Fano resonance enhanced surface plasmon resonance sensors operating in near-infrared
description In the phase-sensitivity-based surface plasmon resonance (SPR) sensing scheme, the highest phase jump usually happens at the darkness or quasi-darkness reflection point, which results in low power for detection. To overcome such a limitation, in this paper, a waveguide-coupled SPR configuration is proposed to work at near-infrared. The coupling between surface plasmon polariton (SPP) mode and photonic waveguide (PWG) mode results in electromagnetically induced transparency (EIT) and asymmetric Fano resonance (FR). Near the resonance, the differential phase between p-polarized and s-polarized incident waves experience drastic variation upon change of the surrounding refractive index. More importantly, since the FR occurs at the resonance slope of SPP mode, the corresponding phase change is accompanied with relatively high reflectivity, which is essential for signal-to-noise ratio (SNR) enhancement and power consumption reduction. Phase sensitivity up to 106 deg/RIU order with a minimum SPR reflectivity higher than 20% is achieved. The proposed scheme provides an alternative approach for high-performance sensing applications using FR.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Huang, Tianye
Zeng, Shuwen
Zhao, Xiang
Cheng, Zhuo
Shum, Perry Ping
format Article
author Huang, Tianye
Zeng, Shuwen
Zhao, Xiang
Cheng, Zhuo
Shum, Perry Ping
author_sort Huang, Tianye
title Fano resonance enhanced surface plasmon resonance sensors operating in near-infrared
title_short Fano resonance enhanced surface plasmon resonance sensors operating in near-infrared
title_full Fano resonance enhanced surface plasmon resonance sensors operating in near-infrared
title_fullStr Fano resonance enhanced surface plasmon resonance sensors operating in near-infrared
title_full_unstemmed Fano resonance enhanced surface plasmon resonance sensors operating in near-infrared
title_sort fano resonance enhanced surface plasmon resonance sensors operating in near-infrared
publishDate 2018
url https://hdl.handle.net/10356/89580
http://hdl.handle.net/10220/46299
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