Diode-Laser Measurements of H2-Broadening Coefficients in the ν2 Band of HCN

V. Landrain, G. Blanquet, M. Lepère, J. Walrand, J.-P. Bouanich

Research output: Contribution to journalArticlepeer-review


H-broadening coefficients have been measured for 34 absorption lines of hydrogen cyanide (HCN) in the P, Q, and R branches of the v band, using a tunable diode-laser spectrometer. These lines with J values ranging from 2 to 26 are located in the spectral range 658-780 cm. The collisional widths are obtained by modeling each spectral line with a Voigt and a Rautian profile. A semiclassical calculation of these collisional broadening provides results in satisfactory overall agreement with the experimental data in the P and R branches as well as in the Q branch.
Original languageEnglish
Pages (from-to)184-188
Number of pages5
JournalJournal of molecular spectroscopy
Issue number1
Publication statusPublished - 1 Mar 1997


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