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Proceedings Paper

Laser cleaning of anodized aluminum in different surroundings
Author(s): Peter Meja; P. Alloncle; Michel L. Autric
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Paper Abstract

Standard anodized aluminum samples with about 20 micrometer thick oxide layer were investigated for cleaning study by means of laser pulses. The removal mechanism was studied for short laser pulses at 1064 nm, 532 nm and 248 nm wavelength in air and water. The samples were examined using scanning electron, optical microscopy. Photoacoustic, shock wave measurements and high-speed visualization have been set-up. The experiments were carried out in a new cleaning set-up, which allows a liquid surrounding medium. We investigate the influence of the surrounding medium and the dependence of the laser cleaning efficiency on energy densities and number of pulses. The ablation threshold and ablation mechanisms vary due to the different absorptance of the oxide and aluminum at different wavelength. The surroundings influence has been shown.

Paper Details

Date Published: 16 August 2000
PDF: 10 pages
Proc. SPIE 4065, High-Power Laser Ablation III, (16 August 2000);
Show Author Affiliations
Peter Meja, Institute for Research on Non Equilibrium Phenomena (France)
P. Alloncle, Institute for Research on Non Equilibrium Phenomena (France)
Michel L. Autric, Institute for Research on Non Equilibrium Phenomena (France)

Published in SPIE Proceedings Vol. 4065:
High-Power Laser Ablation III
Claude R. Phipps, Editor(s)

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