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Proceedings Paper

Rotational line asymmetry as an evidence of line mixing: HF-He
Author(s): I. M. Grigor'ev; N. N. Filippov; M. V. Tonkov
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Paper Abstract

The rotational lineshapes in the FIR absorption of hydrogen fluoride in compressed gaseous helium were studied in the spectral region of 30 to 360 cm-1. The line asymmetry was observed, and this fact was treated as a manifestation of spectral line mixing. Using the semiclassical impact approach, the asymmetry coefficients of lines were calculated. The method was modernized by adiabatic factorization of the distribution function of collisional frequencies via definite angular momentum vector variations. The calculated asymmetry coefficients are consistent with the measured ones within the experimental inaccuracies. The measured widths and the estimated shifts were compared with the literature data.

Paper Details

Date Published: 26 January 1994
PDF: 5 pages
Proc. SPIE 2205, 11th Symposium and School on High-Resolution Molecular Spectroscopy, (26 January 1994); doi: 10.1117/12.166233
Show Author Affiliations
I. M. Grigor'ev, St. Petersburg State Univ. (Russia)
N. N. Filippov, St. Petersburg State Univ. (Russia)
M. V. Tonkov, St. Petersburg State Univ. (Russia)


Published in SPIE Proceedings Vol. 2205:
11th Symposium and School on High-Resolution Molecular Spectroscopy
Alexander I. Nadezhdinskii; Yu V. Ponomarev; Leonid N. Sinitsa, Editor(s)

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