Numerical simulation of a truncated cladding negative curvature fiber sensor based on the surface plasmon resonance effect

A refractive index (RI) sensor based on the surface plasmon resonance effect is proposed using a truncated cladding negative curvature fiber (TC-NCF). The influences of the TC-NCF structure parameters on the sensing performances are investigated and compared with the traditional NCF. The simulation...

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Bibliographic Details
Published in:Chinese physics B 2023-03, Vol.32 (3), p.34208-305
Main Authors: Zhang, Zhichao, Yuan, Jinhui, Qiu, Shi, Zhou, Guiyao, Zhou, Xian, Yan, Binbin, Wu, Qiang, Wang, Kuiru, Sang, Xinzhu
Format: Article
Language:English
Subjects:
refractive index sensor
surface plasmon resonance
truncated cladding negative curvature fiber
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Summary:A refractive index (RI) sensor based on the surface plasmon resonance effect is proposed using a truncated cladding negative curvature fiber (TC-NCF). The influences of the TC-NCF structure parameters on the sensing performances are investigated and compared with the traditional NCF. The simulation results show that the proposed TC-NCF RI sensor has an ultra-wide detection range from 1.16 to 1.43. The maximum wavelength sensitivity reaches 12400 nm/RIU, and the corresponding R 2 of the polynomial fitting equation is 0.9999. The maximum and minimum resolutions are 2.56 × 10 −5 and 8.06 × 10 −6 , respectively. In addition, the maximum amplitude sensitivity can reach –379.1 RIU −1 when the RI is chosen as 1.43. The proposed TC-NCF RI sensor could be useful in biochemical medicine, environmental monitoring, and food safety.
ISSN:1674-1056
DOI:10.1088/1674-1056/ac785e