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

ABSTRACT: Using frequency-agile rapid scanning cavity ring-down spectroscopy, we measured line intensities and line shape parameters of ¹⁴N₂ ¹⁶O in air in the (4200)←(0000) and (5000)←(0000) bands near 1.6 µm. The absorption spectra were modeled with multi-spectrum fits of Voigt and speed-dependent Voigt profiles. The measured line intensities and air-broadening parameters exhibit deviations of several percent relative to values provided in HITRAN 2016. Our measured intensities for these two bands have relative combined standard uncertainties of ∼1% which is approximately five times smaller than literature values. Comparison of the present air-broadening and speed-dependent broadening parameters to experimental literature values for other rotation-vibration ba

SUBMITTER: Adkins EM 

PROVIDER: S-EPMC9706648 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature