Plasma Propulsion of a Metallic Micro-droplet and its Deformation upon Laser Impact

The propulsion of a liquid indium-tin micro-droplet by nanosecond-pulse laser impact is experimentally investigated. We capture the physics of the droplet propulsion in a scaling law that accurately describes the plasma-imparted momentum transfer, enabling the optimization of the laser-droplet coupl...

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Published inarXiv.org
Main Authors Kurilovich, Dmitry, Klein, Alexander L, Torretti, Francesco, Lassise, Adam, Hoekstra, Ronnie, Ubachs, Wim, Gelderblom, Hanneke, Versolato, Oscar O
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 01.04.2016
Subjects
Deformation mechanisms
Droplets
Lasers
Mathematical models
Momentum transfer
Nanosecond pulses
Optimization
Physics - Fluid Dynamics
Physics - Plasma Physics
Plasma propulsion
Scaling laws
Vaporization
Water drops
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Summary:The propulsion of a liquid indium-tin micro-droplet by nanosecond-pulse laser impact is experimentally investigated. We capture the physics of the droplet propulsion in a scaling law that accurately describes the plasma-imparted momentum transfer, enabling the optimization of the laser-droplet coupling. The subsequent deformation of the droplet is described by an analytical model that accounts for the droplet's propulsion velocity and the liquid properties. Comparing our findings to those from vaporization-accelerated mm-sized water droplets, we demonstrate that the hydrodynamic response of laser-impacted droplets is scalable and independent of the propulsion mechanism.
ISSN:2331-8422
DOI:10.48550/arxiv.1604.00214