Quantum cascade laser spectroscopy of N2O in the 7.9 μm region for the in situ monitoring of the atmosphere

作者: Agnès Grossel , Virginie Zéninari , Bertrand Parvitte , Lilian Joly , Daniel Courtois

DOI: 10.1016/J.JQSRT.2007.12.002

关键词: Intensity (heat transfer)In situAnalytical chemistrySpectrometerLine (formation)SpectroscopyOpticsAtmosphereQuantum cascade laserMaterials scienceLaser

摘要: Abstract A quantum cascade laser spectrometer was used in the Groupe de Spectrometrie Moleculaire et Atmospherique of Reims (France) to precisely study nitrous oxide (N2O) line parameters near 7.9 μm. The spectral region ranging from 1275 1280 cm–1, which is suitable for situ measurement N2O atmosphere balloon-borne measurements, studied using a commercial Alpes Lasers. Five lines ν1 band have been studied. results intensity air-broadening coefficients and their variation with temperature −58 °C up ambient are compared previous determinations available databases. These demonstrate that these quite well known literature. Parameters obtained this work given very high precision.

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