Doppler and collision-broadening effects in the profile of spectral lines

Details Doppler and collision-broadening effects in the profile of spectral lines Doppler and collision-broadening effects in the profile of spectral lines

Aug 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975josa...65..949f&link_type=abstract

Optical Society of America, Journal, vol. 65, Aug. 1975, p. 949-951.

Physics

Optics

9

Atmospheric Optics, Doppler Effect, Line Shape, Spectral Line Width, Absorption Spectra, Laser Outputs, Line Spectra, Voigt Effect

Scientific paper

It is pointed out that the Lorentz linewidth used in the calculation of the combined Doppler and collision-broadening effects should depend on the velocity of the molecules. The Lorentz linewidth is to be averaged over the thermal population after taking into account the Doppler effect. On the basis of a numerical investigation it is concluded that for an accurate comparison of theoretical and experimental results the Voigt line shape should be modified.

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