Intrinsic Spectral Resolution Limitations of QEPAS Sensors for Fast and Broad Wavelength Tuning

Intrinsic Spectral Resolution Limitations of QEPAS Sensors for Fast and Broad Wavelength Tuning

Quartz-enhanced photoacoustic sensing is a promising method for low-concentration trace-gas monitoring due to the resonant signal enhancement provided by a high-Q quartz tuning fork. However, quartz-enhanced photoacoustic spectroscopy (QEPAS) is associated with a relatively slow acoustic decay, whic...

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Bibliographic Details
Main Authors: Jesper B. Christensen, Lasse Høgstedt, Søren M. M. Friis, Jui-Yu Lai, Ming-Hsien Chou, David Balslev-Harder, Jan C. Petersen, Mikael Lassen
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Sensors
Subjects:
quartz-enhanced photoacoustic spectroscopy
quartz tuning fork
environmental sensor
optical parametric oscillator
molecular spectroscopy
Online Access:https://www.mdpi.com/1424-8220/20/17/4725

Internet

https://www.mdpi.com/1424-8220/20/17/4725

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