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Pulsed laser ablation of silver: ion dynamics in the plasma plume

M. ESPOSITO1, T. LIPPERT1,* , C. W. SCHNEIDER1, A. WOKAUN1, T. DONNELLY2, J. G. LUNNEY2, H. TELLEZ3, J. M. VADILLO3, J. J. LASERNA3

Affiliation

  1. Paul Scherrer Institut, General Energy Research Department, 5232 Villigen, Switzerland
  2. School of Physics, Trinity College Dublin, Ireland
  3. Department of Analytical Chemistry, Universidad de Málaga, España

Abstract

The ion dynamics of silver ablated using 355 and 193nm pulsed laser irradiation in vacuum has been investigated by using a Langmuir probe and quadrupole mass spectrometry. The kinetic energies of the ablated silver ions were measured to be between 5 and 40 eV depending on the laser fluence. In addition, the angular distributions of ablated species showed that ionic species are preferentially ejected along the surface normal and the corresponding plasma temperature T ≈ 0.7 eV agrees well for both techniques..

Keywords

Plasma plume evolution, Langmuir probe, Quadrupole mass spectrometer.

Submitted at: June 19, 2009
Accepted at: Feb. 27, 2010

Citation

M. ESPOSITO, T. LIPPERT, C. W. SCHNEIDER, A. WOKAUN, T. DONNELLY, J. G. LUNNEY, H. TELLEZ, J. M. VADILLO, J. J. LASERNA, Pulsed laser ablation of silver: ion dynamics in the plasma plume, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 3, pp. 677-680 (2010)