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This article is cited in 32 scientific papers (total in 32 papers)
PLASMA, HYDRO- AND GAS DYNAMICS
Nanoscale hydrodynamic instability in a molten thin gold film induced by femtosecond laser ablation
V. I. Emel'yanova, D. A. Zayarnyib, A. A. Ioninb, I. V. Kiselevabc, S. I. Kudryashovb, S. V. Makarovb, T. H. Nguyenc, A. A. Rudenkob a M. V. Lomonosov Moscow State University, Faculty of Physics
b P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow
c Moscow Institute of Physics and Technology (State University), Dolgoprudny, Moscow region
Abstract:
A mechanism of the formation of a nanotip with a nanoparticle at its top that appears in a thin metal film irradiated by a single femtosecond laser pulse has been studied experimentally and theoretically. It has been found that the nanotip appears owing to a melt flow and a nanojet formation, which is cooled and solidified. Within a proposed hydrodynamic model, the development of thermocapillary instability in the melted film is treated with the use of the Kuramoto–Sivashinsky-type hydrodynamic equation. The simulation shows that the nanojet nucleates in the form of a nanopeak in a pit on the top of a microbump (linear stage) and, then, grows in a nonlinear (explosive) regime of an increase in thermocapillary instability in good agreement with experimental data.
Received: 01.04.2014
Citation:
V. I. Emel'yanov, D. A. Zayarnyi, A. A. Ionin, I. V. Kiseleva, S. I. Kudryashov, S. V. Makarov, T. H. Nguyen, A. A. Rudenko, “Nanoscale hydrodynamic instability in a molten thin gold film induced by femtosecond laser ablation”, Pis'ma v Zh. Èksper. Teoret. Fiz., 99:9 (2014), 601–605; JETP Letters, 99:9 (2014), 518–522
Linking options:
https://www.mathnet.ru/eng/jetpl3728 https://www.mathnet.ru/eng/jetpl/v99/i9/p601
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Abstract page: | 324 | Full-text PDF : | 64 | References: | 53 | First page: | 30 |
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