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Proceedings Paper

Continuous monitoring of nitric oxide at 5.33 um with an EC-QCL based Faraday rotation spectrometer: laboratory and field system performance
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Paper Abstract

Nitric oxide detection with Faraday rotation spectroscopy offers excellent sensitivity and high specificity together with outstanding long term system performance. Development of a transportable, cryogen-free, prototype field instrument based on mode-hop-free external cavity quantum cascade laser targeting the optimum NO Q(3/2) transition at 1875.8 cm-1 is reported . The system shows a minimum detection limit of 5.4 ppb with a 1sec. lock-in time constant. Continuous, unattended NO monitoring with >1 hour white noise limited averaging times is reported.

Paper Details

Date Published: 26 January 2009
PDF: 8 pages
Proc. SPIE 7222, Quantum Sensing and Nanophotonic Devices VI, 72220M (26 January 2009); doi: 10.1117/12.809354
Show Author Affiliations
Gerard Wysocki, Princeton Univ. (United States)
Rafal Lewicki, Rice Univ. (United States)
Xue Huang, Princeton Univ. (United States)
Robert F. Curl, Rice Univ. (United States)
Frank K. Tittel, Rice Univ. (United States)

Published in SPIE Proceedings Vol. 7222:
Quantum Sensing and Nanophotonic Devices VI
Manijeh Razeghi; Rengarajan Sudharsanan; Gail J. Brown, Editor(s)

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