New line positions and effective line intensities of the ν2 band cis-HONO near 1661 cm−1 from quantum cascade laser absorption spectroscopy - Université du Littoral Côte d'Opale Accéder directement au contenu
Article Dans Une Revue Journal of Quantitative Spectroscopy and Radiative Transfer Année : 2022

New line positions and effective line intensities of the ν2 band cis-HONO near 1661 cm−1 from quantum cascade laser absorption spectroscopy

Nicolas Houzel
Weidong Chen
Cecile Coeur
Minh Nhut Ngo
  • Fonction : Auteur
  • PersonId : 1236876
  • IdRef : 268459339
Tong-Nguyen Ba
  • Fonction : Auteur
  • PersonId : 1309923

Résumé

High-resolution quantum cascade laser absorption spectrum of cis-HONO of the v2 band has been recorded and analyzed, for the first time, in the mid-infrared region of 1659.2-1662.2 cm-1 (R-branch of the v2 band, N=O stretch). Positions and effective line intensities were determined for about 60 new lines. The absolute absorption frequencies were directly measured during spectral scan using a wavelength meter with an accuracy of ∼0.0017 cm-1. The corresponding simulation spectrum was calculated using the PGOPHER code. The calculated line positions are in a good agreement with the experimentally measured frequencies within the wavelength meter uncertainty. Effective line intensities were determined, with uncertainties of about 17%, by scaling the measured HONO absorption intensities to the previously reported line intensity of a cis-HONO line located in the same spectral region near 1659.85 cm-1.
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Dates et versions

hal-04289960 , version 1 (16-11-2023)

Identifiants

Citer

Nicolas Houzel, Weidong Chen, Cecile Coeur, Minh Nhut Ngo, Tong-Nguyen Ba. New line positions and effective line intensities of the ν2 band cis-HONO near 1661 cm−1 from quantum cascade laser absorption spectroscopy. Journal of Quantitative Spectroscopy and Radiative Transfer, 2022, 278, pp.108012. ⟨10.1016/j.jqsrt.2021.108012⟩. ⟨hal-04289960⟩
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