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arXiv · 2207.13463

Sub-promille measurements and calculations of CO (3--0) overtone line intensities

K. Bielska·A. A. Kyuberis·Z. D. Reed·Gang Li·A. Cygan·R. Ciuryło·D. Lisak·E. M. Adkins·L. Lodi·J. T. Hodges·V. Ebert·N. F. Zobov·J. Tennyson·O. L. Polyansky
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Abstract

Intensities of lines in the near-infrared second overtone band (3--0) of $^{12}$C$^{16}$O are measured and calculated to an unprecedented degree of precision and accuracy. Agreement between theory and experiment to better than 1 $\permil$ is demonstrated by results from two laboratories involving two independent absorption- and dispersion-based cavity-enhanced techniques. Similarly, independent Fourier transform spectroscopy measurements of stronger lines in this band yield mutual agreement and consistency with theory at the 1 $\permil$ level. This set of highly accurate intensities can provide an intrinsic reference for reducing biases in future measurements of spectroscopic peak areas.

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K. Bielska, A. A. Kyuberis, Z. D. Reed, Gang Li, A. Cygan, R. Ciuryło, D. Lisak, E. M. Adkins, L. Lodi, J. T. Hodges, V. Ebert, N. F. Zobov, J. Tennyson, O. L. Polyansky. 2022-07-27. Sub-promille measurements and calculations of CO (3--0) overtone line intensities. https://doi.org/10.1103/physrevlett.129.043002

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