Laser-induced film ejection at interfaces: Comparison of the dynamics of liquid and solid films

The ejection dynamics of nanometer-thin fluid isopropanol and solid CO 2 films are investigated. The films are deposited on a silicon substrate, which is rapidly heated by a nanosecond laser pulse (Nd:YAG, 532 nm). A small fraction of material at the interface evaporates and the film on top is eject...

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Veröffentlicht in:	Applied physics. A, Materials science & processing Materials science & processing, 2010-10, Vol.101 (1), p.7-11
Hauptverfasser:	Frank, P., Graf, J., Lang, F., Boneberg, J., Leiderer, P.
Format:	Artikel
Sprache:	eng
Schlagworte:	Characterization and Evaluation of Materials Condensed Matter Physics Dynamics Ejection Flight Kinetic energy Lamella Machines Manufacturing Materials science Nanomaterials Nanostructure Nanotechnology Optical and Electronic Materials Physics Physics and Astronomy Processes Surfaces and Interfaces Thin Films
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Beschreibung
Zusammenfassung:	The ejection dynamics of nanometer-thin fluid isopropanol and solid CO 2 films are investigated. The films are deposited on a silicon substrate, which is rapidly heated by a nanosecond laser pulse (Nd:YAG, 532 nm). A small fraction of material at the interface evaporates and the film on top is ejected as an intact layer. The kinetic energies of the two different films with thicknesses between 100 nm and 1 μm give an insight into the dynamics of a flying lamella.
ISSN:	0947-8396 1432-0630
DOI:	10.1007/s00339-010-5770-5