Quartz-enhanced photoacoustic-photothermal spectroscopy for trace gas sensing
Quartz-enhanced photoacoustic-photothermal spectroscopy for trace gas sensing
复制标题
用于痕量气体传感的石英增强光声光热光谱
DOI：
10.1364/oe.418256
复制
发表时间：
2021-02-15
期刊：
影响因子：
3.8
通讯作者：
Ma, Yufei
中科院分区：
文献类型：
--
作者：
Hu, Yinqiu;Qiao, Shunda;Ma, Yufei
介绍了一种石英增强光声光热光谱（QEPA-PTS）痕量气体探测技术。与石英增强光声光谱（QEPAS）或石英增强光热光谱（QEPTS）只能检测单一信号不同，QEPA-PTS是将两个石英音叉（QTF）产生的光声信号和光热信号叠加在一起实现的。选择体积浓度为1.01%的水蒸气（H2O）作为分析气体，以研究QEPA-PTS传感器的性能。与QEPAS和QEPTS相比，该QEPA-PTS系统实现了增强的信号电平。提出了进一步改进这种技术的建议。(C)根据OSA开放获取出版协议的条款，2021年美国光学学会
A trace gas detection technique of quartz-enhanced photoacoustic-photothermal spectroscopy (QEPA-PTS) is demonstrated. Different from quartz-enhanced photoacoustic spectroscopy (QEPAS) or quartz-enhanced photothermal spectroscopy (QEPTS), which detected only one single kind of signal, QEPA-PTS was realized by adding the photoacoustic and photothermal signals generated from two quartz tuning forks (QTFs), respectively. Water vapor (H2O) with a volume concentration of 1.01% was selected as the analyte gas to investigate the QEPA-PTS sensor performance. Compared to QEPAS and QEPTS, an enhanced signal level was achieved for this QEPA-PTS system. Further improvement of such a technique was proposed. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement