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Proceedings Paper

Laser cleaning of magnetic disks
Author(s): Wen Dong Song; Yongfeng Lu; Minghui Hong; Tohsiew Low
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Paper Abstract

Laser cleaning of disk surfaces was investigated both experimentally and theoretically. It was found that laser cleaning efficiency increases with increasing laser fluence and pulse number. The optimal cleaning conditions can be selected between the two boundaries of damage thresholds and critical cleaning thresholds (100% cleaning). A cleaning model was established for laser-induced removal of particles from substrate surfaces by taking Van der Waals force and cleaning force into account. The theoretical analysis shows that the cleaning force (per unit area) increases with increasing laser fluence, which leads to a higher cleaning efficiency for removing particles from disk surfaces. The experimental results can be explained by the model and simulation.

Paper Details

Date Published: 15 August 1998
PDF: 8 pages
Proc. SPIE 3550, Laser Processing of Materials and Industrial Applications II, (15 August 1998); doi: 10.1117/12.317933
Show Author Affiliations
Wen Dong Song, National Univ. of Singapore (Singapore)
Yongfeng Lu, National Univ. of Singapore (United States)
Minghui Hong, National Univ. of Singapore (Singapore)
Tohsiew Low, National Univ. of Singapore (Singapore)

Published in SPIE Proceedings Vol. 3550:
Laser Processing of Materials and Industrial Applications II
ShuShen Deng; S. C. Wang, Editor(s)

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