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Temperature and density spectroscopic measurements in different laser-generated plasmas

  • L. Torrisi
  • A. BorrielliEmail author
  • D. Margarone
  • F. Caridi
  • A. M. Mezzasalma
Topical issue: 23rd Symposium on Plasma Physics and Technology

Abstract

A pulsed Nd:Yag laser, at intensities of the order of 1010 W/cm2, is employed to irradiate different thick metallic targets (Ti, Fe, Ag, and Ni) placed in vacuum. The obtained non-equilibrium plasmas are investigated with various analytical techniques. An electrostatic ion energy analyzer and different ion collectors are employed to monitor in situ the ions ejected from the plasma and to determine the core plasma temperature, the ion energy distributions and the ion angular emission. An optical spectrometer is employed to analyze the plasma corona emitted light vs. wavelength and to identify the emitted characteristic lines. The optical spectroscopy permitted to evaluate the electron temperatures and densities. Results show strong temperature and density gradients occurring in the laser-generated plasma plume.

PACS

52.70.Kz Optical (ultraviolet, visible, infrared) measurements 52.70.Nc Particle measurements 

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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • L. Torrisi
    • 1
    • 2
  • A. Borrielli
    • 1
    • 2
    Email author
  • D. Margarone
    • 1
    • 2
  • F. Caridi
    • 1
    • 2
  • A. M. Mezzasalma
    • 3
    • 2
  1. 1.Dipartimento di FisicaUniversità di MessinaMessinaItaly
  2. 2.INFN, LNS e Sezione di CataniaCataniaItaly
  3. 3.Dipartimento di Fisica della Materia e TFAMessinaItaly

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