Infrared steam laser cleaning
نویسنده
چکیده
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. PACS 64.70.F· 68.43.Vx · 81.65.Cf
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تاریخ انتشار 2008