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An experimental water line list at 1950 K in the 6250–6670 cm−1 region
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Applied Physics and Electronics. (Applied Laser Spectroscopy, TEC-Lab)ORCID iD: 0000-0002-5065-7786
Umeå University, Faculty of Science and Technology, Department of Physics.
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2018 (English)In: Journal of Quantitative Spectroscopy and Radiative Transfer, ISSN 0022-4073, E-ISSN 1879-1352, Vol. 205, p. 213-219Article in journal (Refereed) Published
Abstract [en]

An absorption spectrum of (H2O)-O-16 at 1950 K is recorded in a premixed methane/air flat flame using a cavity-enhanced optical frequency comb-based Fourier transform spectrometer. 2417 absorption lines are identified in the 6250-6670 cm(-1) region with an accuracy of about 0.01 cm(-1). Absolute line intensities are retrieved using temperature and concentration values obtained by tunable diode laser absorption spectroscopy. Line assignments are made using a combination of empirically known energy levels and predictions from the new POKAZATEL variational line list. 2030 of the observed lines are assigned to 2937 transitions, once blends are taken into account. 126 new energy levels of (H2O)-O-16 are identified. The assigned transitions belong to 136 bands and span rotational states up to J = 27.

Place, publisher, year, edition, pages
2018. Vol. 205, p. 213-219
Keyword [en]
Water, Absorption, Fourier transform spectroscopy, Optical cavity, Frequency comb, Calculations
National Category
Atom and Molecular Physics and Optics Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:umu:diva-141519DOI: 10.1016/j.jqsrt.2017.10.016ISI: 000417665000023OAI: oai:DiVA.org:umu-141519DiVA, id: diva2:1155025
Available from: 2017-11-06 Created: 2017-11-06 Last updated: 2018-01-31Bibliographically approved

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Rutkowski, LucileFoltynowicz, AleksandraSchmidt, Florian M.Johansson, Alexandra C.
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