title: Polarization effects and anisotropy in three-dimensional relativistic self-focusing.
abstract: The relativistic self-focusing of high-intensity laser pulses in underdense plasmas is investigated with three-dimensional particle in cell simulations. The different behavior of a linearly polarized pulse in the two transverse directions is interpreted as a combination of two two-dimensional responses with different polarizations. In the polarization plane a high density sheet is formed, which separates the two regions of oppositely directed quasistatic magnetic field.
authors: Max-Born Institute für Quantenoptik, Berlin, Germany.
authors: N M
authors: NM
authors: Naumova
authors: S V
authors: SV
authors: Bulanov
authors: K
authors: K
authors: Nishihara
authors: T Zh
authors: TZh
authors: Esirkepov
authors: F
authors: F
authors: Pegoraro