Study of second harmonic emissions for characterization of laser-plasma X-ray sources

A Giulietti, C Beneduce, T Ceccotti, D Giulietti, Hanka Laue-Gizzi, R Mildren

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Abstract

An investigation of second harmonic (SH) and X-ray emissions from Al plasmas produced by 3-ns, 1.064-mu m laser pulses at 10(14) W/cm(2) is reported. The SH and X-ray yields are strongly correlated as a function of the target position with respect to the laser beam focus. The SH originates from the underdense coronal plasma and has a filamentary source, while the X-ray source is uniform. The results suggest that, although the X-ray emission is significantly enhanced by the filamentation of the laser light in the corona, there is a smoothing effect in the energy transport process toward the overdense region.

Original languageEnglish
Pages (from-to)397-404
Number of pages8
JournalLaser and Particle Beams
Volume16
Issue number2
Publication statusPublished - 1998

Keywords

  • 2ND-HARMONIC EMISSION
  • FILAMENTATION
  • GENERATION

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    Giulietti, A., Beneduce, C., Ceccotti, T., Giulietti, D., Laue-Gizzi, H., & Mildren, R. (1998). Study of second harmonic emissions for characterization of laser-plasma X-ray sources. Laser and Particle Beams, 16(2), 397-404.