Expansion Dynamics After Laser-Induced Cavitation in Liquid Tin Microdroplets
Abstract
The cavitation-driven expansion dynamics of liquid tin microdroplets is investigated, set in motion by the ablative impact of a 15-ps laser pulse. We combine high-resolution stroboscopic shadowgraphy with an intuitive fluid dynamic model that includes the onset of fragmentation, and find good agreement between model and experimental data for two different droplet sizes over a wide range of laser pulse energies. The dependence of the initial expansion velocity on these experimental parameters is heuristically captured in a single power law. Further, the obtained late-time mass distributions are shown to be governed by a single parameter. These studies are performed under conditions relevant for plasma light sources for extreme-ultraviolet nanolithography.
Keywords
Cite
@article{arxiv.1805.07283,
title = {Expansion Dynamics After Laser-Induced Cavitation in Liquid Tin Microdroplets},
author = {Dmitry Kurilovich and Tiago de Faria Pinto and Francesco Torretti and Ruben Schupp and Joris Scheers and Aneta S. Stodolna and Hanneke Gelderblom and Kjeld S. E. Eikema and Stefan Witte and Wim Ubachs and Ronnie Hoekstra and Oscar O. Versolato},
journal= {arXiv preprint arXiv:1805.07283},
year = {2018}
}
Comments
7 pages, 6 figures