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Acoustic Detection Module Design of a Quartz-Enhanced Photoacoustic Sensor

1
State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China
2
Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
3
Department of Electrical and Computer Engineering, Rice University, Houston, TX 77005, USA
*
Author to whom correspondence should be addressed.
Sensors 2019, 19(5), 1093; https://doi.org/10.3390/s19051093
Received: 26 January 2019 / Revised: 17 February 2019 / Accepted: 23 February 2019 / Published: 4 March 2019
(This article belongs to the Special Issue Optical Sensing and Imaging, from UV to THz Range)
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Abstract

This review aims to discuss the latest advancements of an acoustic detection module (ADM) based on quartz-enhanced photoacoustic spectroscopy (QEPAS). Starting from guidelines for the design of an ADM, the ADM design philosophy is described. This is followed by a review of the earliest standard quartz tuning fork (QTF)-based ADM for laboratory applications. Subsequently, the design of industrial fiber-coupled and free-space ADMs based on a standard QTF for near-infrared and mid-infrared laser sources respectively are described. Furthermore, an overview of the latest development of a QEPAS ADM employing a custom QTF is reported. Numerous application examples of four QEPAS ADMs are described in order to demonstrate their reliability and robustness. View Full-Text
Keywords: quartz-enhanced photoacoustic spectroscopy; acoustic detection module; quartz tuning fork quartz-enhanced photoacoustic spectroscopy; acoustic detection module; quartz tuning fork
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Wei, T.; Wu, H.; Dong, L.; Tittel, F.K. Acoustic Detection Module Design of a Quartz-Enhanced Photoacoustic Sensor. Sensors 2019, 19, 1093.

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