INTERACTION OF LASER RADIATION WITH MATTER. LASER PLASMA: Generation of magnetic fields as a result of interaction of pairs of radiation pulses with solid barriers
An analysis is made of the problem of generation of magnetic fields in a laser plasma jet formed as a result of the interaction of two consecutive radiation pulses of moderate intensity with a dielectric barrier. It is assumed that the source of an emf is the thermo-emf of the inhomogeneous plasma. The structure of gasdynamic streams and the parameters of magnetic fields in the plasma jet are found by numerical solution of a known system of equations considered in a two-dimensional cylindrical configuration. The profiles of the plasma parameters and the temporal and spatial distributions of the magnetic fields are presented. It is shown that the results of numerical calculations can be useful, for example, in the diagnostics of laser jets.