Intra-pulse Cavity Enhanced Measurements of Carbon Monoxide in a Rapid Compression Machine

Abstract
A laser absorption sensor for carbon monoxide concentration was developed for combustion studies in a rapid compression machine using a pulsed quantum cascade laser near 4.89 μm. Cavity enhancement reduced minimum detection limit down to 2.4 ppm at combustion relevant conditions. Off-axis alignment and rapid intra-pulse down-chirp resulted in effective suppression of cavity noise.

Citation
Nasir EF, Farooq A (2018) Intra-pulse Cavity Enhanced Measurements of Carbon Monoxide in a Rapid Compression Machine. Conference on Lasers and Electro-Optics. Available: http://dx.doi.org/10.1364/cleo_at.2018.atu4i.5.

Acknowledgements
Research reported in this publication was supported by funding from the King Abdullah University of Science and Technology (KAUST).

Publisher
The Optical Society

Journal
Conference on Lasers and Electro-Optics

DOI
10.1364/cleo_at.2018.atu4i.5

Additional Links
https://www.osapublishing.org/abstract.cfm?URI=CLEO_AT-2018-ATu4I.5

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