A. A. Andreev, K. Yu. Platonov, L. A. Litvinov
- Faculty of Physics, St. Petersburg University, 190034, St. Petersburg, Russia
- Ioffe Institute, 194021, St. Petersburg, Russia
- Peter the Great St. Petersburg Polytechnic University, 195251, St. Petersburg, Russia
Abstract: We report a numerical and analytical investigation of the effect of ion motion on the temporal dynamics of a strong quasi-stationary magnetic field arising when submicron clusters are irradiated with circularly polarized radiation. A region of high-density magnetized ions is shown to appear in the central region of the cluster. This region has an increased lifetime compared to that of a cluster without a magnetic field. The presence of a magnetized region leads to a characteristic two-peak dependence of the magnetic field on time.
Keywords: circularly polarized laser pulse, laser cluster plasma, strong quasi-stationary magnetic field.
The work was supported by the Russian Science Foundation (grant no. 23-22-00110); calculations were performed on the computer cluster of the Peter the Great St. Petersburg Polytechnic University.
Received: 18.10.2023
Revised: 15.11.2023
Accepted: 15.11.2023