Collision induced absorption (CIA) data

HITRAN CIA

See [Karman2019] and [Richard12].

System	vmin	vmax
	cm-1	cm-1
H2-CH4	0	1946
H2-H2	20	10000
H2-H	100	11000
H2-He	20	20000
He-H	50	11000
N2-H2	0	1886
N2-He	1	1000
N2-N2	0	5000
N2-air	1850	5000
N2-H2O	1930	2830
O2-CO2	12600	13839
O2-N2	1300	13840
O2-O2	1150	29800
O2-air	1300	13839
CO2-CO2	1	3250
CO2-H2	0	2000
CO2-He	0	1000
CO2-CH4	1	2000
CO2-Ar	0	300
CH4-He	1	1000

[Karman2019]

Tijs Karman, Iouli E. Gordon, Ad van der Avoird, Yury I. Baranov, Christian Boulet, Brian J. Drouin, Gerrit C. Groenenboom, Magnus Gustafsson, Jean-Michel Hartmann, Robert L. Kurucz, Laurence S. Rothman, Kang Sun, Keeyoon Sung, Ryan Thalman, Ha Tran, Edward H. Wishnow, Robin Wordsworth, Andrey A. Vigasin, Rainer Volkamer, Wim J. van der Zande, Update of the HITRAN collision-induced absorption section, Icarus, 328, 160-175 (2019) doi:10.1016/j.icarus.2019.02.034

[Richard12]

Richard, I. Gordon, L. Rothman, M. Abel, L. Frommhold, M. Gustafsson, J.-M. Hartmann, C. Hermans, W. Lafferty, G. Orton, K. Smith, H. Tran, New section of the HITRAN database: Collisioninduced absorption (CIA), J. Quant. Spectrosc. Radiat. Transfer, 113, 1276 (2012). doi:10.1016/j.jqsrt.2011.11.004

EXPERIMENTAL DATA

New experimental measurements of the H₂ CIA fundamental band in the [3600, 5500] cm^-1 spectral range, using both a pure H₂ gas and a H₂-He mixture, have been published in [Vitali2025]. The H₂-H₂ and H₂-He binary absorption coefficients have been recorded for temperatures going from 120 to 504 K, at a resolution of 1 cm^-1. The data can be downloaded in tabular form from Zenodo platform at this link <https://zenodo.org/records/13142015> and have been added in the HITRAN database as mentioned in the last HITRAN CIA update paper (see [Terragni2025])

System	vmin	vmax	Temperature range
	cm-1	cm-1	K
H2-H2	3600	5500	[120 - 501]
H2-He	3600	5500	[121 - 504]

[Vitali2025]

Francesca Vitali, Stefania Stefani, Giuseppe Piccioni, Marcel Snels, Davide Grassi, David Biondi, Angelo Boccaccini, New experimental measurements of the Collision Induced Absorptions of H2-H2 and H2-He in the 3600-5500 cm-1 spectral range from 120 to 500 K, J. Quant. Spectrosc. Radiat. Transfer, 330, (2025) https://doi.org/10.1016/j.jqsrt.2024.109255

[Terragni2025]

Terragni, I.E. Gordon, E.M. Adkins, C. Boulet, A. Campargue, D. Chistikov, A. Finenko, H. Finkenzeller, H. Fleurbaey, R.J. Hargreaves, R.K. Hanson, J.-M. Hartmann, A. Klingberg, E. Kohler, A.O. Koroleva, D. Mondelain, G. Piccioni, S. Stefani, C.L. Strand, H. Tran, M. Turbet ,A. Vigasin, F. Vitali, R. Volkamer, C. Wei, Collision induced absorption in HITRAN2024: Enhanced and improved data for atmospheric and planetary studies, J. Quant. Spectrosc. Radiat. Transfer, 347, (2025) https://doi.org/10.1016/j.jqsrt.2025.109631