用于双通道测量折射率和温度的锥形POF-SPR传感器

IF 2.7 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology Pub Date : 2025-09-14 DOI:10.1016/j.yofte.2025.104385

Zhitao Yang, Lingzui Wei, Zehong Xu, Fenglei Zhao, Sijia Han, Songlin Jia

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引用次数: 0

摘要

温度是影响光纤传感器性能的关键参数。本文设计了一种基于塑料光纤（POF）的锥形表面等离子体共振（SPR）传感器，并研究了该传感器对液体折射率（RI）和温度的灵敏度。结果表明，当传感器的锥比为2.80时，在1.333 ~ 1.433的RI范围内，其灵敏度可达2890.536 nm/RIU。在传感区域的银膜上涂覆聚二甲基硅氧烷（PDMS）温敏膜后，在0 ~ 96℃和- 40 ~ 0℃温度范围内，温度灵敏度分别达到- 0.906 nm/℃和- 1.807 nm/℃，并表现出较高的线性度和循环稳定性。我们进一步开发了一种双通道传感器，用于同时测量RI和温度。结果表明，在1.333 ~ 1.373的RI范围和10 ~ 60°C的温度范围内，对RI和温度的灵敏度分别为1845.603 nm/RIU和- 0.891 nm/°C。所提出的双通道塑料光纤SPR传感器具有成本低、灵敏度高、串扰低、制作简单等优点，在生物、医学等领域具有广阔的研究和应用前景。

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Tapered POF-SPR sensor for dual-channel measurement of refractive index and temperature

Temperature is a key parameter that affects the performance of optical fiber sensors. In this work, we designed a tapered surface plasmon resonance (SPR) sensor based on plastic optical fiber (POF), and the sensor’ s sensitivity to liquid refractive index (RI) and temperature was investigated separately. The results show that when the taper ratio of the sensor is 2.80, its sensitivity can reach 2890.536 nm/RIU within the RI range of 1.333 ∼ 1.433. After coating a polydimethylsiloxane (PDMS) temperature-sensitive film on the Ag film in the sensing area, within the temperature ranges of 0 ∼ 96 °C and − 40 ∼ 0 °C, the temperature sensitivities reach −0.906 nm/°C and −1.807 nm/°C, respectively, and demonstrating high linearity and cyclic stability. We further developed a dual-channel sensor for simultaneous measurement of RI and temperature. The results demonstrate that within the RI range of 1.333 ∼ 1.373 and temperature range of 10 ∼ 60 °C, the sensitivities for RI and temperature are 1845.603 nm/RIU and −0.891 nm/°C, respectively. The proposed dual-channel plastic optical fiber SPR sensor offers advantages such as low cost, high sensitivity, low crosstalk, and simple fabrication, making it promising for research and application in fields such as biology and medicine.

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来源期刊

Optical Fiber Technology 工程技术-电信学

CiteScore

4.80

自引率

11.10%

发文量

327

审稿时长

63 days

期刊介绍： Innovations in optical fiber technology are revolutionizing world communications. Newly developed fiber amplifiers allow for direct transmission of high-speed signals over transcontinental distances without the need for electronic regeneration. Optical fibers find new applications in data processing. The impact of fiber materials, devices, and systems on communications in the coming decades will create an abundance of primary literature and the need for up-to-date reviews. Optical Fiber Technology: Materials, Devices, and Systems is a new cutting-edge journal designed to fill a need in this rapidly evolving field for speedy publication of regular length papers. Both theoretical and experimental papers on fiber materials, devices, and system performance evaluation and measurements are eligible, with emphasis on practical applications.