High Sensitivity Plasmonic Sensor Based on Fano Resonance with Inverted U-Shaped Resonator

Herein, we propose a tunable plasmonic sensor with Fano resonators in an inverted U-shaped resonator. By manipulating the sharp asymmetric Fano resonance peaks, a high-sensitivity refractive index sensor can be realized. Using the multimode interference coupled-mode theory and the finite element met...

Full description

Bibliographic Details
Main Authors:	Gongli Xiao, Yanping Xu, Hongyan Yang, Zetao Ou, Jianyun Chen, Haiou Li, Xingpeng Liu, Lizhen Zeng, Jianqing Li
Format:	Article
Language:	English
Published:	MDPI AG 2021-02-01
Series:	Sensors
Subjects:	Fano resonance metal-dielectric-metal finite element method plasmonic nanosensor
Online Access:	https://www.mdpi.com/1424-8220/21/4/1164

id	doaj-b29d444a8c3d444180b51613c70d154e
record_format	Article
spelling	doaj-b29d444a8c3d444180b51613c70d154e2021-02-08T00:01:52ZengMDPI AGSensors1424-82202021-02-01211164116410.3390/s21041164High Sensitivity Plasmonic Sensor Based on Fano Resonance with Inverted U-Shaped ResonatorGongli Xiao0Yanping Xu1Hongyan Yang2Zetao Ou3Jianyun Chen4Haiou Li5Xingpeng Liu6Lizhen Zeng7Jianqing Li8Guangxi Key Laboratory of Precision Navigation Technology and Application, Guilin University of Electronic Technology, Guilin 541004, ChinaGuangxi Key Laboratory of Precision Navigation Technology and Application, Guilin University of Electronic Technology, Guilin 541004, ChinaGuangxi Key Laboratory of Automatic Detecting Technology and Instruments, Guilin University of Electronic Technology, Guilin 541004, ChinaGuangxi Key Laboratory of Precision Navigation Technology and Application, Guilin University of Electronic Technology, Guilin 541004, ChinaGuangxi Key Laboratory of Precision Navigation Technology and Application, Guilin University of Electronic Technology, Guilin 541004, ChinaGuangxi Key Laboratory of Precision Navigation Technology and Application, Guilin University of Electronic Technology, Guilin 541004, ChinaGuangxi Key Laboratory of Precision Navigation Technology and Application, Guilin University of Electronic Technology, Guilin 541004, ChinaGraduate school, Guilin University of Electronic Technology, Guilin, Guangxi 541004, ChinaGuangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, Foshan University, Foshan 528225, ChinaHerein, we propose a tunable plasmonic sensor with Fano resonators in an inverted U-shaped resonator. By manipulating the sharp asymmetric Fano resonance peaks, a high-sensitivity refractive index sensor can be realized. Using the multimode interference coupled-mode theory and the finite element method, we numerically simulate the influences of geometrical parameters on the plasmonic sensor. Optimizing the structure parameters, we can achieve a high plasmonic sensor with the maximum sensitivity for 840 nm/RIUand figure of merit for 3.9 × 10<sup>5</sup>. The research results provide a reliable theoretical basis for designing high sensitivity to the next generation plasmonic nanosensor.https://www.mdpi.com/1424-8220/21/4/1164Fano resonancemetal-dielectric-metalfinite element methodplasmonic nanosensor
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Gongli Xiao Yanping Xu Hongyan Yang Zetao Ou Jianyun Chen Haiou Li Xingpeng Liu Lizhen Zeng Jianqing Li
spellingShingle	Gongli Xiao Yanping Xu Hongyan Yang Zetao Ou Jianyun Chen Haiou Li Xingpeng Liu Lizhen Zeng Jianqing Li High Sensitivity Plasmonic Sensor Based on Fano Resonance with Inverted U-Shaped Resonator Sensors Fano resonance metal-dielectric-metal finite element method plasmonic nanosensor
author_facet	Gongli Xiao Yanping Xu Hongyan Yang Zetao Ou Jianyun Chen Haiou Li Xingpeng Liu Lizhen Zeng Jianqing Li
author_sort	Gongli Xiao
title	High Sensitivity Plasmonic Sensor Based on Fano Resonance with Inverted U-Shaped Resonator
title_short	High Sensitivity Plasmonic Sensor Based on Fano Resonance with Inverted U-Shaped Resonator
title_full	High Sensitivity Plasmonic Sensor Based on Fano Resonance with Inverted U-Shaped Resonator
title_fullStr	High Sensitivity Plasmonic Sensor Based on Fano Resonance with Inverted U-Shaped Resonator
title_full_unstemmed	High Sensitivity Plasmonic Sensor Based on Fano Resonance with Inverted U-Shaped Resonator
title_sort	high sensitivity plasmonic sensor based on fano resonance with inverted u-shaped resonator
publisher	MDPI AG
series	Sensors
issn	1424-8220
publishDate	2021-02-01
description	Herein, we propose a tunable plasmonic sensor with Fano resonators in an inverted U-shaped resonator. By manipulating the sharp asymmetric Fano resonance peaks, a high-sensitivity refractive index sensor can be realized. Using the multimode interference coupled-mode theory and the finite element method, we numerically simulate the influences of geometrical parameters on the plasmonic sensor. Optimizing the structure parameters, we can achieve a high plasmonic sensor with the maximum sensitivity for 840 nm/RIUand figure of merit for 3.9 × 10<sup>5</sup>. The research results provide a reliable theoretical basis for designing high sensitivity to the next generation plasmonic nanosensor.
topic	Fano resonance metal-dielectric-metal finite element method plasmonic nanosensor
url	https://www.mdpi.com/1424-8220/21/4/1164
work_keys_str_mv	AT gonglixiao highsensitivityplasmonicsensorbasedonfanoresonancewithinvertedushapedresonator AT yanpingxu highsensitivityplasmonicsensorbasedonfanoresonancewithinvertedushapedresonator AT hongyanyang highsensitivityplasmonicsensorbasedonfanoresonancewithinvertedushapedresonator AT zetaoou highsensitivityplasmonicsensorbasedonfanoresonancewithinvertedushapedresonator AT jianyunchen highsensitivityplasmonicsensorbasedonfanoresonancewithinvertedushapedresonator AT haiouli highsensitivityplasmonicsensorbasedonfanoresonancewithinvertedushapedresonator AT xingpengliu highsensitivityplasmonicsensorbasedonfanoresonancewithinvertedushapedresonator AT lizhenzeng highsensitivityplasmonicsensorbasedonfanoresonancewithinvertedushapedresonator AT jianqingli highsensitivityplasmonicsensorbasedonfanoresonancewithinvertedushapedresonator
_version_	1724280435784024064

High Sensitivity Plasmonic Sensor Based on Fano Resonance with Inverted U-Shaped Resonator

Similar Items