Spontaneous magnetic fields with dipole structure in a laser plasma
Abstract
Mechanisms of spontaneous magnetic fields generated in the focal region of a laser plasma are investigated experimentally. The observed magnetic moments are found to be practically independent of residual gas pressure and to occur simultaneously with the arrival of the laser pulse at a target. It is suggested that the mechanism for the occurrence of the observed moments is identical in all of the cases and is associated with the perturbation of the axisymmetric distribution of the n and T gradients in a laser plasma, which leads to a distortion of the toroidally-symmetric configuration of closed-loop currents and the occurrence of an uncompensated current loop that produces dipole radiation.
- Publication:
-
ZhETF Pisma Redaktsiiu
- Pub Date:
- June 1979
- Bibcode:
- 1979ZhPmR..29..700K
- Keywords:
-
- Laser Plasma Interactions;
- Laser Plasmas;
- Magnetic Dipoles;
- Magnetic Moments;
- Density Distribution;
- Dielectrics;
- Laser Outputs;
- Laser Targets;
- Magnetic Field Configurations;
- Optical Polarization;
- Plasma Physics