材料科学
光纤传感器
光纤
光学
纤维
灵敏度(控制系统)
温度测量
频道(广播)
对偶(语法数字)
复合材料
电信
电子工程
物理
工程类
文学类
艺术
量子力学
计算机科学
作者
Like Li,Yanan Zhang,Wanlu Zheng,Ri-Qing Lv,Yong Zhao
出处
期刊:Optics Letters
[The Optical Society]
日期:2023-01-09
卷期号:48 (4): 952-952
被引量:13
摘要
In this Letter, an in-fiber dual-channel surface plasmon resonance (SPR) sensor is reported that uses polydimethylsiloxane (PDMS)-filled C-type microstructured optical fiber (COF). The COF is made of HF-acid-etched single-sided hole optical fiber (SSHF), and its inner and outer sides are coated with gold film to stimulate SPR. The inner channel is filled with PDMS and acts as the temperature measurement channel, and the outer channel is directly in contact with the salt solution and acts as the salinity measurement channel. Experiments show that the sensor is qualified to detect salinity and temperature simultaneously, and it exhibits a salinity sensitivity of 0.296 nm/‰ in the salinity range of 0–153.32‰ and a high temperature sensitivity of −2.4 nm/°C in the temperature range of 22–44°C. Furthermore, the sensor also enjoys good hysteresis, repeatability, and reversibility in salinity detection. In a word, the high sensitivity, simple preparation, and good integration of the proposed sensor endow it with the potential for deep-sea exploration.
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