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We analytically obtained the frequency dependences of the absorption coefficient profile, taking into account the combined influence of the macroscopic motion of matter, Doppler and Voigt mechanisms of spectral line broadening. The effect of rotation of a spherical plasma on the formation of resonant fluorescence by barium ions upon absorption of laser radiation at a wavelength of 455.4 nm was studied. The deformation of the frequency shape of the laser radiation passing through the plasma and the emission spectrum is due to a shift in the absorption coefficient profile and its broadening caused by the rotational motion of the plasma. An increase in the resonant photons escape from the medium stipulated by the broadening of the emission spectrum of the resonance line is predicted. [ABSTRACT FROM AUTHOR]

A review of the application, during the years 1980 to 2000, of the modified semiempirical method developed by Dimitrijević and Konević in 1980 for calculating the parameters of Stark broadening is given and the possibility of using this method to calculate the Stark width and, in some cases, the shift of a large number of spectral lines of various atoms and a number of ions is shown. [ABSTRACT FROM AUTHOR]