Trace gas sensing based on multi-quartz-enhanced photothermal spectroscopy [PDF]
Photoacoustics, 2020 A multi-quartz-enhanced photothermal spectroscopy (M-QEPTS) based trace gas detection method is reported for the first time. Different from traditional QEPTS sensor employing a single quartz tuning fork (QTF) as a photothermal detector, two QTFs were ...
Yufei Ma +4 more
doaj +6 more sources
A mini-resonant photoacoustic sensor based on a sphere-cylinder coupled acoustic resonator for high-sensitivity trace gas sensing [PDF]
PhotoacousticsThis paper reports a mini-resonant photoacoustic sensor for high-sensitivity trace gas sensing. The sensor primarily contains a sphere-cylinder coupled acoustic resonator, a cylindrical buffer chamber, and a fiber-optic acoustic sensor.
Guojie Wu +9 more
doaj +3 more sources
Miniaturized Photoacoustic Trace Gas Sensing Using a Raman Fiber Amplifier [PDF]
Journal of Lightwave Technology, 2015 This paper presents the development of a Raman fiber amplifier optical source with a maximum output power of 1.1 W centered around 1651 nm, and its application in miniaturized 3D printed photoacoustic spectroscopy (PAS) trace gas sensing of methane.
R. Bauer +6 more
semanticscholar +5 more sources
Chirped Laser Dispersion Spectroscopy for Remote Open-Path Trace-Gas Sensing [PDF]
Sensors, 2012 In this paper we present a prototype instrument for remote open-path detection of nitrous oxide. The sensor is based on a 4.53 μm quantum cascade laser and uses the chirped laser dispersion spectroscopy (CLaDS) technique for molecular ...
Gerard Wysocki, Michal Nikodem
doaj +5 more sources
Frontiers in Physics, 2022 In this article, with an anti-resonant hollow core fiber (ARHCF), fiber-enhanced Raman spectroscopy (FERS) for trace-gas sensing in a high-concentration gas background is demonstrated for the first time.
Guochao Qian +8 more
doaj +2 more sources
Quartz-enhanced photoacoustic-photothermal spectroscopy for trace gas sensing.
Optics Express, 2021 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 ...
Yinqiu Hu +4 more
semanticscholar +3 more sources
Application of Micro Quartz Tuning Fork in Trace Gas Sensing by Use of Quartz-Enhanced Photoacoustic Spectroscopy. [PDF]
Sensors (Basel), 2019 A novel quartz-enhanced photoacoustic spectroscopy (QEPAS) sensor based on a micro quartz tuning fork (QTF) is reported. As a photoacoustic transducer, a novel micro QTF was 3.7 times smaller than the usually used standard QTF, resulting in a gas ...
Lin H +11 more
europepmc +2 more sources
Review of Recent Advances in QEPAS-Based Trace Gas Sensing
Applied Sciences, 2018 Quartz-enhanced photoacoustic spectroscopy (QEPAS) is an improvement of the conventional microphone-based photoacoustic spectroscopy. In the QEPAS technique, a commercially available millimeter-sized piezoelectric element quartz tuning fork (QTF) is used
Yufei Ma
doaj +2 more sources
High-sensitivity miniature dual-resonance photoacoustic sensor based on silicon cantilever beam for trace gas sensing. [PDF]
Photoacoustics, 2022 Wu G +8 more
europepmc +2 more sources
Cavity-enhanced light-induced thermoelastic spectroscopy for trace-gas sensing.
Optics ExpressWe report a trace gas sensing technique of cavity-enhanced light-induced thermoelastic spectroscopy (CE-LITES) with a Fabry-Pérot (F-P) optical cavity and a high-quality-factor resonant quartz tuning fork (QTF).
Dongqing Zhang +8 more
semanticscholar +3 more sources