Graphene coated micro-channel fiber sensor based on localized surface plasmon resonance

被引：4

作者：

Zhang, Jingao ^{[1
]}

Yuan, Jinhui ^{[1
,2
,3
]}

Qu, Yuwei ^{[1
]}

Qiu, Shi ^{[1
]}

Mei, Chao ^{[2
,3
]}

Zhou, Xian ^{[2
,3
]}

Yan, Binbin ^{[1
]}

Wu, Qiang ^{[4
,5
]}

Wang, Kuiru ^{[1
]}

Sang, Xinzhu ^{[1
]}

Yu, Chongxiu ^{[1
]}

机构：

[1] Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China

[2] Univ Sci & Technol Beijing, Res Ctr Convergence Networks, Beijing 100083, Peoples R China

[3] Univ Sci & Technol Beijing, Ubiquitous Serv, Beijing 100083, Peoples R China

[4] Northumbria Univ, Dept Phys & Elect Engn, Newcastle Upon Tyne NE1 8ST, England

[5] Nanchang Hangkong Univ, Key Lab Optoelect Informat Sci & Technol Jiangxi P, Nanchang 330063, Peoples R China

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2023年 / 40卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Graphene;

D O I：

10.1364/JOSAB.482275

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, a novel localized surface plasmon resonance (LSPR)-based micro-channel photonic crystal fiber (PCF) sensor is proposed. The LSPR-PCF sensor is designed with the three micro-channels, and the metal nanos-traps and graphene are coated onto the PCF as the sensing elements. To realize high refractive index (RI) sensitivity, the influence of different plasmon materials, structure parameters, and graphene layers on the sensing performance of the LSPR-PCF sensor is investigated. The maximum wavelength sensitivity and amplitude sensitivity of the opti-mized LSPR-PCF sensor are up to 45800 nm/RIU and 1818 RIU-1, respectively, when the RI changes from 1.35 to 1.42. Furthermore, the proposed LSPR-PCF sensor achieves the maximum figure of merit of 594.8, alone with a resolution of 2.18 x 10-6 RIU. Because of its simple structure and excellent sensing performance, the proposed LSPR-PCF sensor has potential applications in biochemistry and environmental science.(c) 2023 Optica Publishing Group

引用

页码：695 / 704

页数：10

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