A novel surface plasmon resonance-based photonic crystal fiber refractive index sensor with an ultra-wide detection range

被引：13

作者：

Zhang, Jingao ^{[1
]}

Yuan, Jinhui ^{[1
,2
]}

Qu, Yuwei ^{[1
]}

Qiu, Shi ^{[1
]}

Mei, Chao ^{[2
]}

Zhou, Xian ^{[2
]}

Yan, Binbin ^{[1
]}

Wu, Qiang ^{[3
]}

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 USTB, Res Ctr Convergence Networks & Ubiquitous Serv, Beijing 100083, Peoples R China

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

来源：

OPTIK | 2022年 / 259卷

基金：

中国国家自然科学基金;

关键词：

Photonic crystal fiber; Surface plasmon resonance; Refractive index sensor; Ultra-wide detection range; POLARIZATION FILTER; OPTICAL-FIBER; FABRICATION; DESIGN; FUTURE;

D O I：

10.1016/j.ijleo.2022.168977

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, a novel photonic crystal fiber (PCF) refractive index (RI) sensor with an ultra-wide detection range based on the surface plasmon resonance (SPR) effect is proposed. By selectively filling the air hole with the analyte and introducing the gold-coated air hole, the high performance RI sensing can be achieved. The simulation results show that the asymmetric structure of the PCF makes the x-polarization (x-pol) and y-polarization (y-pol) core modes have different sensing characteristics. The average wavelength sensitivity of the proposed SPR-PCF RI sensor can reach -4523 nm/RIU in the RI range from 1.25 to 1.45 for the x-pol core mode as well as -4851 nm/RIU in the RI range from 1.25 to 1.49 for the y-pol core mode. The maximum amplitude sensitivities of -1239.19 RIU-1 and -1633.54 RIU-1 for the x-pol and y-pol core modes are also achieved. Moreover, the proposed SPR-PCF RI sensor can obtain the maximum resolutions of 1.603 x 10(-5) and 1.695 x 10(-5) RIU and figure of merits of 226.92 and 105.76 RIU-1 for the x-pol and y-pol core modes, respectively. It is believed that the proposed SPR-PCF RI sensor has potential applications in the chemistry, biology, and environment monitoring.

引用

页数：10

共 44 条

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