Jet formation in the laser forward transfer of liquids |
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Authors: | M Duocastella J M Fernández-Pradas P Serra J L Morenza |
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Institution: | (1) Departament de Física Aplicada i òptica, Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain |
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Abstract: | The dynamics of the laser-induced forward transfer (LIFT) of an aqueous solution is investigated through time-resolved imaging.
The experiment is carried out at conditions under which droplets are deposited on a receptor substrate. The obtained images
reveal that after an initial balloon-like stage, a uniform jet with a very long length and high aspect ratio is formed, which
advances at constant speed until it finally becomes unstable and breaks into several droplets. This dynamics demonstrates
that the deposition process of well-defined droplets through LIFT results from the contact of the liquid jet with the receptor
substrate, and not from a flying droplet. |
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Keywords: | PACS" target="_blank">PACS 81 15Fg 87 80 -y 87 14Ee |
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