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1 Bulletin of the Polish Academy of Sciences. Technical Sciences

1 2015

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Application of quantum cascade lasers to trace gas detection

Bielecki Z., Stacewicz T., Wojtas J., Mikołajczyk J.

Bulletin of the Polish Academy of Sciences. Technical Sciences

2015

Vol. 63, nr 2

515--525

The potential of Quantum Cascade Laser technology has been recently harnessed in industry, medicine and military to create a range of original infrared gas sensors. These sensors have opened up many new applications due to compact size, excellent sensitivity, robust construction and low power requirements. They rely on infrared absorption spectroscopy to determine identity and quantity of gases. The measurement of these gases has relied on different technologies including multi-pass spectroscopy, photoacoustic spectroscopy, cavity ring down spectroscopy, and their various modifications. In this review paper some technologies are described in terms of its advantages/disadvantages in many application. The results of own works about methane, ammonia, nitric oxide, nitrous oxide, and carbonyl sulfide detection are presented as well.