16 August 2000 Laser cleaning of anodized aluminum in different surroundings
Author Affiliations +
Proceedings Volume 4065, High-Power Laser Ablation III; (2000) https://doi.org/10.1117/12.407324
Event: High-Power Laser Ablation, 2000, Santa Fe, NM, United States
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.
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Peter Meja, Peter Meja, P. Alloncle, P. Alloncle, Michel L. Autric, Michel L. Autric, } "Laser cleaning of anodized aluminum in different surroundings", Proc. SPIE 4065, High-Power Laser Ablation III, (16 August 2000); doi: 10.1117/12.407324; https://doi.org/10.1117/12.407324


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