Spectral-Line Broadening and Shift
This chapter is devoted to the impact broadening and shift of spectral lines corresponding to radiative transitions involving Rydberg states. We give a brief account of the semiclassical and quantum approaches to impact broadening and shift and consider various mechanisms of identified processes based on the results of the collision theory presented in the preceding chapters. Main attention is paid to studies of the broadening width and shift behavior for Rydberg atomic series perturbed by thermal collisions with the rare gas and alkali-metal atoms, for which there are extensive experimental and theoretical data. Another goal is to describe the spectral-line broadening for transitions between highly excited levels induced by inelastic electron collisions in a plasma.
KeywordsMicrowave Manifold Helium Strontium Xenon
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