Side-Opening Grapefruit Fiber-Based SPR Sensor for Simultaneous Measurement of Refractive Index and Temperature

Xianxing Ji; Nannan Luan; Wandi Zhang; Yaoyao Qi; Mingming Luo; Jianfei Liu

doi:10.1109/JPHOT.2022.3219137

IEEE Photonics Journal (Jan 2022)

Side-Opening Grapefruit Fiber-Based SPR Sensor for Simultaneous Measurement of Refractive Index and Temperature

Xianxing Ji,
Nannan Luan,
Wandi Zhang,
Yaoyao Qi,
Mingming Luo,
Jianfei Liu

Affiliations

Xianxing Ji: ORCiD; Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, Tianjin, China
Nannan Luan: ORCiD; Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, Tianjin, China
Wandi Zhang: Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, Tianjin, China
Yaoyao Qi: ORCiD; Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, Tianjin, China
Mingming Luo: ORCiD; Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, Tianjin, China
Jianfei Liu: Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, Tianjin, China

DOI: https://doi.org/10.1109/JPHOT.2022.3219137
Journal volume & issue: Vol. 14, no. 6
pp. 1 – 6

Abstract

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A novel side-opening grapefruit fiber-based SPR sensor is designed to realize simultaneous measurement of refractive index (RI) and temperature. The open section of the grapefruit fiber is coated with a gold layer, which can support two main resonance peaks. The variations of RI and temperature can influence the coupling efficiency between core-guided mode and plasmon mode, thus lead to the two peaks shifts that can be used to determine the variations of RI and temperature. Simulation results demonstrate that the RI coefficients of Peak I and Peak II are 1400 nm/RIU and 226 nm/RIU, respectively. The temperature coefficients of Peak I and Peak II are 34 pm/°C and 527.2 pm/°C, respectively.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

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