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Title: Generation of vortex rings by nonstationary laser wake field

Abstract

A new concept of generating quasistatic magnetic fields, vortex rings, and electron jets in an isotropic homogeneous plasma is presented. The propagation of plasma waves, generated by a relativistically intense short pulse laser, is investigated by using the kinetic model and a novel nonpotential, time-dependent ponderomotive force is derived by obtaining a hydrodynamic equation of motion. This force can in turn generate quasistatic magnetic fields, vortex rings, and electron jets. It is also shown that the vortex rings can become a means for accelerating electrons, which are initially in equilibrium. The conservation of canonical momentum circulation and the frozen-in condition for the vorticity is discussed. The excitation of the vortex waves by the modulation of the amplitude of the plasma waves is considered. These vortex waves, which generate a lower hybrid mode propagating across the generated magnetic field, are also investigated.

Authors:
; ;  [1];  [2];  [2]
  1. Department of Physics, Tbilisi State University, Chavchavadze 3 (Georgia)
  2. (Pakistan)
Publication Date:
OSTI Identifier:
20782438
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 13; Journal Issue: 1; Other Information: DOI: 10.1063/1.2158694; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AMPLITUDES; ELECTRONS; EQUATIONS OF MOTION; EXCITATION; HOMOGENEOUS PLASMA; LASER RADIATION; LASERS; LIGHT TRANSMISSION; LOWER HYBRID CURRENT DRIVE; LOWER HYBRID HEATING; MAGNETIC FIELDS; MAGNETOHYDRODYNAMICS; PLASMA INSTABILITY; PLASMA JETS; PLASMA WAVES; PONDEROMOTIVE FORCE; PULSES; RELATIVISTIC PLASMA; TIME DEPENDENCE; VORTICES

Citation Formats

Tsintsadze, N.L., Murtaza, G., Shah, H.A., National Centre for Mathematics, G.C. University, Lahore 54000, and Department of Physics, G.C. University, Lahore 54000. Generation of vortex rings by nonstationary laser wake field. United States: N. p., 2006. Web. doi:10.1063/1.2158694.
Tsintsadze, N.L., Murtaza, G., Shah, H.A., National Centre for Mathematics, G.C. University, Lahore 54000, & Department of Physics, G.C. University, Lahore 54000. Generation of vortex rings by nonstationary laser wake field. United States. doi:10.1063/1.2158694.
Tsintsadze, N.L., Murtaza, G., Shah, H.A., National Centre for Mathematics, G.C. University, Lahore 54000, and Department of Physics, G.C. University, Lahore 54000. Sun . "Generation of vortex rings by nonstationary laser wake field". United States. doi:10.1063/1.2158694.
@article{osti_20782438,
title = {Generation of vortex rings by nonstationary laser wake field},
author = {Tsintsadze, N.L. and Murtaza, G. and Shah, H.A. and National Centre for Mathematics, G.C. University, Lahore 54000 and Department of Physics, G.C. University, Lahore 54000},
abstractNote = {A new concept of generating quasistatic magnetic fields, vortex rings, and electron jets in an isotropic homogeneous plasma is presented. The propagation of plasma waves, generated by a relativistically intense short pulse laser, is investigated by using the kinetic model and a novel nonpotential, time-dependent ponderomotive force is derived by obtaining a hydrodynamic equation of motion. This force can in turn generate quasistatic magnetic fields, vortex rings, and electron jets. It is also shown that the vortex rings can become a means for accelerating electrons, which are initially in equilibrium. The conservation of canonical momentum circulation and the frozen-in condition for the vorticity is discussed. The excitation of the vortex waves by the modulation of the amplitude of the plasma waves is considered. These vortex waves, which generate a lower hybrid mode propagating across the generated magnetic field, are also investigated.},
doi = {10.1063/1.2158694},
journal = {Physics of Plasmas},
number = 1,
volume = 13,
place = {United States},
year = {Sun Jan 15 00:00:00 EST 2006},
month = {Sun Jan 15 00:00:00 EST 2006}
}