Abstract
The subject of this review is the collisional redistribution of resonance atomic radiation in dilute gases. The formation of scattered spectra in weak and intense fields is discussed and the formation that may be obtained from experiments is presented. The focus of recent work in the field is on radiative events taking place during collisions. Different aspects of the problem are presented using mainly the density matrix and correlation function approach. This work has shown what types of information on interatomic potentials and collision dynamics can be obtained using near-resonant light scattering from gases: this is highlighted in a discussion of light scattering in the presence of depolarizing collisions. We discuss the relationship of work on collisional redistribution to the various “half-collision” experiments that have recently come to the fore.
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