表面等离子共振
材料科学
石墨烯
光子晶体光纤
等离子体子
光电子学
折射率
功勋
灵敏度(控制系统)
光纤传感器
光纤
纳米技术
波长
纤维
光学
纳米颗粒
电子工程
复合材料
工程类
物理
作者
Jingao Zhang,Jinhui Yuan,Yuwei Qu,Shi Qiu,Chao Mei,Xian Zhou,Binbin Yan,Qiang Wu,Kuiru Wang,Xinzhu Sang,Chongxiu Yu
出处
期刊:Journal of The Optical Society of America B-optical Physics
[The Optical Society]
日期:2023-03-08
卷期号:40 (4): 695-695
被引量:1
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 nanostraps 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 optimized LSPR-PCF sensor are up to 45800 nm/RIU and 1818RIU −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 2.18×10 −6 RIU. Because of its simple structure and excellent sensing performance, the proposed LSPR-PCF sensor has potential applications in biochemistry and environmental science.
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