一氧化碳
甲烷
吸收(声学)
光纤
材料科学
纤维
芯(光纤)
氮气
铟
吸收光谱法
光纤传感器
二氧化碳
光电子学
光学
化学
复合材料
有机化学
催化作用
物理
生物化学
作者
Artur de Araujo Silva,Luís A. M. Barea,Carlos Alberto De Francisco
出处
期刊:Journal of The Optical Society of America B-optical Physics
[Optica Publishing Group]
日期:2023-01-30
卷期号:40 (4): C21-C21
被引量:1
摘要
This work demonstrates the potential application of anti-resonant hollow-core fibers (AR-HCFs) as efficient sensors to simultaneously monitor three gases: methane, carbon monoxide, and nitrogen monoxide. Two AR-HCFs were investigated, one made of silicon dioxide and the other of indium (III) fluoride, to demonstrate the impact of the building material on fiber performance over a wide wavelength range. With the controlled insertion of holes into these fibers, the gas present in the environment can reach the hollow core of the fiber, being able to interact with the propagating light in the fiber. This light–gas interaction, when performed in different spectral regions where certain gases have high absorption, allows simultaneous monitoring of low concentrations of gases present in the environment by direct absorption spectroscopy. The wide wavelength range with low optical losses offered by AR-HCFs makes them suitable for this type of application. The simulation results show low insertion loss and a linear behavior of the optical absorption as a function of gas concentration for the three gases of interest, enabling the application of such sensors in the health, industrial, and environmental areas for precise monitoring of low concentrations of gases.
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