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Photoacoustic detection of nitric oxide with a Helmholtz resonant quantum cascade laser sensor
Affiliation:1. Groupe de Spectrométrie Moléculaire et Atmosphérique, UMR CNRS 6089, UFR Sciences Exactes et Naturelles, Moulin de la Housse, BP 1039, 51687 Reims, Cedex 2, France;2. Institut Pierre Simon Laplace (IPSL), Service d’Aéronomie, UMR CNRS 7620, CNRS-Réduit de Verrières, B.P. 3, 91371 Verrières-le-Buisson Cedex, France;1. Optics and Nanophotonics Department, Institute of Physics, Kazan Federal University, Kazan, Russia;2. Physics Research Center, Imam Hossein University, Tehran, Iran;3. Physics Department, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran;1. Sensorik-Applikationszentrum (SappZ) der Ostbayerischen Technischen Hochschule (OTH) Regensburg, 93053 Regensburg, Germany;2. Universität Regensburg, 93053 Regensburg, Germany;1. School of Physics and Optoelectronic Engineering, Xidian University, Xi’an, 710071, China;2. Center for Advanced Diffusion-Wave and Photoacoustic Technologies (CADIPT), Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, M5S 3G8, Canada;1. Sensorik-Applikationszentrum (SappZ) der Ostbayerischen Technischen Hochschule (OTH) Regensburg, 93053 Regensburg, Germany;2. Universität Regensburg, 93053 Regensburg, Germany;1. Mass and Heat Transfer Process Laboratory, Department of Process and Environmental Engineering, University of Oulu, 90014 Oulu, Finland;2. Photonics and Measurement Solutions, VTT Technical Research Centre of Finland, Kaitoväylä 1, 90571 Oulu, Finland;3. Gasera Ltd., Tykistökatu 4, 20520 Turku, Finland
Abstract:Nitric oxide detection has been performed with a Helmholtz resonant photoacoustic sensor previously developed in Reims. The cell was coupled with a continuous wave distributed feedback quantum cascade laser working at cryogenic temperature in continuous wave mode in the 5.4 μm region. A detection limit of 20 ppb of nitric oxide in nitrogen with a laser power of 3 mW can be predicted. Possible applications and improvements are discussed.
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