Interferometric investigation of diamagnetic cavity creation by laser-produced plasma in strong transverse magnetic field

摘要

The results of studies on the behaviour of a laser-produced plasma in a strong external transverse magnetic field of 10 T in induction, generated from a flat teflon target at laser power density of about 10~14 Wcm~2, are presented. A two-channel interferometer and miniature magnetic probs were used for the measurement of parameters of the plasma and the magnetic field. From the interferograms registered in directions parallel and perpendicular to the magnetic field, it has been revealed that the "plasma-blob" has a clear asymmetry for t≥10 ns caused by an unmagnetized ion Rayleigh -Taylor instability.