Spectral and angular features of radiating diffused by pumping in the field of zero dispersion

The multiplet structure in a resonant light field, for a case when an affecting field omega_L is in the field of zero dispersion is presented by a number of effects, not appropriate for other tuning-out D-lines of natrium atom. In the registered spectrum the components omega₁ disappear but the components omega_R and omega_B could be observed which are shifted accordingly in the red and blue parts from omega_L Fig. 1. It is visible, that with the increase of the viewing angle the energy distribution in a spectrum of a scattered radiation change as well. The outcomes analysis of the experiments demonstrates, that the increase of the power density of pumping by application of different focusing lenses results in considerable modification of registered spectra