Near-infrared cavity ring-down spectroscopy measurements of nitrous oxide in the (4200)←(0000) and (5000)←(0000) bands

Published

February 7, 2021

Author(s)

Erin Adkins, David Long, Adam Fleisher, Joseph T. Hodges

Abstract

Frequency-agile rapid scanning, cavity ring-down spectroscopy (FARS-CRDS) was used to measure line intensities and line shape parameters of 14N216O in air in the (4200)←(0000) and (5000)←(0000) bands near 1.6 μm. The spectra were analyzed with multi-spectrum fits using the Voigt and speed-dependent Voigt profiles. The reported line intensities and air-broadening parameters exhibit several percent deviations from the values provided in HITRAN 2016. The reported air-broadening and speed-dependent broadening parameters are compared to the those reported in the literature for other bands. These comparisons indicate the need for reference data collected in additional N2O bands for understanding of the vibrational dependence of N2O line shape parameters and for the development of phenomenological models that capture the J- dependence of advanced line shape parameters to provide constraints for spectroscopic measurements.

Citation

Journal of Quantitative Spectroscopy and Radiative Transfer

Pub Type

Journals

Download Paper

https://doi.org/10.1016/j.jqsrt.2021.107527

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Keywords

nitrous oxide, cavity ring-down spectroscopy, advanced spectroscopic line shapes

Citation

Adkins, E. , Long, D. , Fleisher, A. and Hodges, J. (2021), Near-infrared cavity ring-down spectroscopy measurements of nitrous oxide in the (4200)←(0000) and (5000)←(0000) bands, Journal of Quantitative Spectroscopy and Radiative Transfer, [online], https://doi.org/10.1016/j.jqsrt.2021.107527, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=931420 (Accessed October 9, 2025)