Vol. 24, issue 10, article # 5

Nabiev Sh. Sh., Ivanov S. V., Ponurovskii Ya. Ya. Near IR TDLS study of HF first overtone line shape. I. Experimental results. // Optika Atmosfery i Okeana. 2011. V. 24. No. 10. P. 864-871 [in Russian].
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Experimental study of the HF first overtone vibration-rotational absorption spectral line profile (the transition 0-2R(0)) broadened by Ar (mixture HF : Ar = 1 : 150, T = 295°K, P = 10ё300 Torr) is performed using the method of near IR diode laser spectroscopy. Tunable distributed feedback fiber diode laser was used as a radiation source in the two-channel spectrometer (wavelength l is ~ 1.284mm, spectral tuning range Dl= 1.5-2.0 cm-1, a power of output radiation of 15 mW, spectral half-width of radiation emission line is ~5 МHz). Broadening and shifting coefficients of considered HF line are determined by using traditional spectral profiles of Voigt, Rautian, and Galatry.


HF molecule, diode laser spectroscopy, contour of overtone spectral line, gas phase complexes, broadening and shifting coefficients