Relativistic filamentation of laser beams in plasma |
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Authors: | D. A. Jones E. L. Kane P. Lalousis P. R. Wiles H. Hora |
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Affiliation: | (1) Department of Theoretical Physics, The University of New South Wales, Sydney, Australia |
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Abstract: | We describe the results of a numerical code which models the relativistic selffocussing of high-intensity laser beams in plasmas by the nonlinear relativistic dependence of the optical constants on laser intensity. The plasma dynamics of 1013 W Nd glass lasers of 30 m initial beam diameter in nearly cut-off density plasmas is followed for a few picoseconds interaction time and 25 m depth into the plasma. Rapid relativistic selffocussing down to a beam diameter of one micron in a distance of the order of the original beam diameter is observed, as well as the production of GeV ions moving against the laser light. |
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Keywords: | 42.65 Jx 52.40 Db 52.40 Mj |
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