Nonlinear wake-field generation and relativistic focusing of intense laser pulses in plasmas

DOI PDF 2 Citations
  • A. Ting
    Beam Physics Branch, Plasma Physics Division, Naval Research Laboratory, Washington, DC 20375-5000
  • E. Esarey
    Beam Physics Branch, Plasma Physics Division, Naval Research Laboratory, Washington, DC 20375-5000
  • P. Sprangle
    Beam Physics Branch, Plasma Physics Division, Naval Research Laboratory, Washington, DC 20375-5000

Abstract

<jats:p>The generation of nonlinear plasma wake fields by an intense, short laser pulse and the relativistic optical guiding of intense laser pulses in plasmas are studied with a nonlinear, self-consistent model of laser–plasma interactions. Nonlinear steepening and period lengthening of the plasma waves are observed, and expressions are obtained for various nonlinear wake-field quantities. Relativistic focusing with the self-consistent plasma response shows that laser pulse fronts and laser pulses shorter than a plasma wavelength, 2πc/ωp, are not relativistically guided and will continuously erode due to diffraction.</jats:p>

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