Relativistic self-focusing in a plasma
Komashko A. , Musher S. , Rubenchik A. , Turitsyn S. , Felt M.
The general properties of stationary waveguides formed in plasma by relativistic self-focusing of ultrapowerful laser pulses are investigated on the basis of a modified nonlinear Schrodinger equation. It is shown that the waveguides can transport arbitrary amounts of energy and that their characteristic size has a lower limit. The formation of the waveguides is studied. It is found that for ultrahigh laser power levels a qualitatively new regime of self-excited oscillations of the "vacuum channel" appears. © 1995 American Institute of Physics.
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![](/ps/1222/article_18467_800_head.png "The general properties of stationary waveguides formed in plasma by relativistic self-focusing of ultrapowerful laser pulses are investigated on the basis of a modified nonlinear Schrodinger equation. It is shown that the waveguides can transport arbitrary amounts of energy and that their characteristic size has a lower limit. The formation of the waveguides is studied. It is found that for ultrahigh laser power levels a qualitatively new regime of self-excited oscillations of the "vacuum channel" appears. © <i>1995 American Institute of Physics.</i>")