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Proceedings Paper

Laser ablation of copper followed by an accelerating potential: a TOF analysis
Author(s): Juliana B. Matos; Rudimar Riva; Nicolau A. S. Rodrigues
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Paper Abstract

It was performed a Time of Flight (TOF) study for the plume produced by laser ablation of cooper by 355 nm, 23 ns duration laser pulses, in vacuum. The plume sensor was made of a piezoelectric PVDF film associated with a pair of electrodes. By varying the electrodes polarization we evaluated the fraction of neutral atoms, which ranged from 8 to 30 % of the plume. By adjusting a TOF function to the PVDF electric signal we obtained the center of mass velocity and the translational temperature. It was observed that product vCM × Tz remains constant with the electrodes potential and that the accelerating potential to which the plume is submitted has practical limits.

Paper Details

Date Published: 30 January 2013
PDF: 5 pages
Proc. SPIE 8677, XIX International Symposium on High-Power Laser Systems and Applications 2012, 86770S (30 January 2013); doi: 10.1117/12.2010560
Show Author Affiliations
Juliana B. Matos, Technological Institute of Aeronautics (Brazil)
Rudimar Riva, Institute for Advanced Studies (Brazil)
Nicolau A. S. Rodrigues, Technological Institute of Aeronautics (Brazil)

Published in SPIE Proceedings Vol. 8677:
XIX International Symposium on High-Power Laser Systems and Applications 2012
Kerim R. Allakhverdiev, Editor(s)

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