Use of external cavity quantum cascade laser compliance voltage in real-time trace gas sensing of multiple chemicals
We describe a prototype trace gas sensor designed for real-time detection of multiple chemicals. The sensor uses an external cavity quantum cascade laser (ECQCL) swept over its tuning range of 940-1075 cm-1 (9.30-10.7 µm) at a 10 Hz repetition rate.
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- Conference: Quantum Sensing and Nanophotonic Devices XII, February 7, 2015, San Francisco, California. Proceedings of the SPIE, 9370:Paper No. 93700Z
- M Razeghi, E Tournie and GJ Brown; SPIE, Bellingham, WA, United States(US).
- Research Org:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
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- United States
- infrared spectroscopy; quantum cascade laser; tunable laser; gas sensing