A highly sensitive optical fiber sensor based on magnetic ion imprinting technology

Tianyu Yang; Yue Feng; Tao Shen

doi:10.1117/12.3007853

18 December 2023 A highly sensitive optical fiber sensor based on magnetic ion imprinting technology

Tianyu Yang, Yue Feng, Tao Shen

Proceedings Volume 12968, AOPC 2023: Optic Fiber Gyro ; 129681P (2023) https://doi.org/10.1117/12.3007853
Event: Applied Optics and Photonics China 2023 (AOPC2023), 2023, Beijing, China

Abstract

In view of the high cost, slow response and insufficient detection limit of traditional detection methods, this paperproposes a high sensitive fiber sensor based on magnetic ion imprinting technology for the detection of lowconcentration of Cd²⁺. First, the evanescent field and waist cone diameter are analyzed by beam propagation method(BPM), and the sensing unit is prepared. Second, γ-Fe₂O₃@MAA(M-IIP) magnetic ion printing nanomaterials wereprepared by solid-liquid separation and combined the magnetic blomaterial with the sensing unit by silanlation. Finally, the sensor enables a low-concentration detection of Cd²⁺. The detection sensitivity was up to 2691.5nm/μMin the rangeof 0-1 μM. The limit of detection (LOD) reached 0.45 nM and the response time was 37s at the lowest concentration. At the same time, the sensor also has good results in terms of structural compactness and production cost.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Tianyu Yang, Yue Feng, and Tao Shen "A highly sensitive optical fiber sensor based on magnetic ion imprinting technology", Proc. SPIE 12968, AOPC 2023: Optic Fiber Gyro , 129681P (18 December 2023); https://doi.org/10.1117/12.3007853

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