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.
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 88, No. 1, pp. 48–56, January–February, 2021.
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Kosarev, N.I., Feskova, E.V. Laser Resonant Fluorescence of a Rotating Barium Plasma. J Appl Spectrosc 88, 40–47 (2021). https://doi.org/10.1007/s10812-021-01138-y
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DOI: https://doi.org/10.1007/s10812-021-01138-y