Journal
FRONTIERS IN PHYSICS
Volume 8, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fphy.2020.00268
Keywords
trace gas sensing; quartz tuning fork; laser spectroscopy; QEPAS; QEPTS
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Funding
- National Natural Science Foundation of China [61875047, 61505041]
- Natural Science Foundation of Heilongjiang Province of China [YQ2019F006]
- Fundamental Research Funds for the Central Universities
- Heilongjiang Province Postdoctoral Foundation [LBH-Q18052]
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This invited review paper summarizes and discusses developments of QTF based state-of-the-art quartz-enhanced photoacoustic spectroscopy (QEPAS) and quartz-enhanced photothermal spectroscopy (QEPTS) gas sensing techniques over the past 3 years. Due to the merits of a high quality factor, a narrow resonance frequency band, a low cost, a small volume, and immunity to the laser wavelength, a QTF is widely used as a sensitive detector in sensing photoacoustic spectroscopy and photothermal spectroscopy based gas. The review also presents prospects in the development of QEPAS and QEPTS based gas sensing techniques.
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