材料科学
对偶(语法数字)
光电子学
带宽(计算)
光学
遥感
物理
计算机科学
地质学
电信
文学类
艺术
作者
Linchuan Hu,Jianshe Li,Zhiyong Yin,Zhigang Gao,Hongwei Li,Kaifeng Li,Zhibing Zhang,Shuguang Li
出处
期刊:Physica Scripta
[IOP Publishing]
日期:2024-08-16
卷期号:99 (10): 105518-105518
被引量:1
标识
DOI:10.1088/1402-4896/ad7063
摘要
Abstract Wide sensing bandwidth is a prerequisite for dual-channel sensors to have a wide detection range and high sensitivity. To obtain a dual-channel optical fiber sensor with wide sensing bandwidth, a Na-based photonic crystal fiber sensor based on the surface plasmon resonance effect is proposed. The proposed sensor structure is numerically analyzed by finite element method. The sensor builds the fiber core in the center of the fiber, chooses alkali metal Na as the plasma material to stimulate the SPR effect, and polymethyl methacrylate and polydimethylsiloxane (PDMS) will be coated on the Na film as the protective layer. As a temperature-sensitive material, PDMS also takes into account the role of constructing temperature-sensing channels. The sensor bandwidth covers 600–1700 nm. The results show that when the RI range of the measured object is 1.33–1.42, the maximum sensitivity of the refractive index sensor is 11100 nm/RIU, and when the temperature range of the measured object is −40–20 °C, the maximum sensitivity of the temperature sensor is 6.4 nm/°C. Meanwhile, the loss peak of the sensor has a lower half-height width and greater detection accuracy. It has a good application prospect in the fields of biosensing and environmental monitoring.
科研通智能强力驱动
Strongly Powered by AbleSci AI