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Sensors 2009, 9(12), 9616-9628; doi:10.3390/s91209616
Review

Photoacoustic Techniques for Trace Gas Sensing Based on Semiconductor Laser Sources

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Received: 9 October 2009 / Revised: 19 November 2009 / Accepted: 23 November 2009 / Published: 2 December 2009
(This article belongs to the Special Issue Laser Spectroscopy and Sensing)
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Abstract

The paper provides an overview on the use of photoacoustic sensors based on semiconductor laser sources for the detection of trace gases. We review the results obtained using standard, differential and quartz enhanced photoacoustic techniques.
Keywords: gas sensing; photoacoustic spectroscopy; quartz enhanced photoacoustic spectroscopy gas sensing; photoacoustic spectroscopy; quartz enhanced photoacoustic spectroscopy
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Elia, A.; Lugarà, P.M.; Di Franco, C.; Spagnolo, V. Photoacoustic Techniques for Trace Gas Sensing Based on Semiconductor Laser Sources. Sensors 2009, 9, 9616-9628.

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