Infrared steam laser cleaning |
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Authors: | P. Frank F. Lang M. Mosbacher J. Boneberg P. Leiderer |
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Affiliation: | (1) University of Konstanz, Fach M676, 78457 Konstanz, Germany |
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Abstract: | Steam Laser Cleaning with a pulsed infrared laser source is investigated. The infrared light is tuned to the absorption maximum of water (λ=2.94 μm, 10 ns), whereas the substrates used are transparent (glass, silicon). Thus a thin liquid water layer condensed on top of the contaminated substrate is rapidly heated. The pressure generated during the subsequent phase explosion generates a cleaning force which exceeds the adhesion of the particles. We examine the cleaning threshold in single shot experiments for particles sized from 1 μm down to 300 nm. |
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Keywords: | KeywordHeading" >PACS 64.70.F- 68.43.Vx 81.65.Cf |
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