Publication Date:
2012-04-30
Description:
It has been revealed experimentally that nanocavities remain inside a surface layer of aluminum after action of a femtosecond laser pulse. This result is in agreement with numerical simulation. A detailed picture of melting, formation of expansion and compression waves, and bubble nucleation in the stretched melt has been reconstructed through atomistic simulation. It has been shown that the bubbles do not fully collapse but remain as frozen disk-shaped nanocavities upon recrystallization of the melt. The formation of a porous metal with small voids is very important for understanding the physics of laser exposure and may have significant applications. Content Type Journal Article Category Plasma, Hydro- and Gas Dynamics Pages 176-181 DOI 10.1134/S0021364012040042 Authors S. I. Ashitkov, Joint Institute for High Temperatures, Russian Academy of Sciences, ul. Izhorskaya 13/19, Moscow, 125412 Russia N. A. Inogamov, Landau Institute for Theoretical Physics, Russian Academy of Sciences, Chernogolovka, Moscow region, 142432 Russia V. V. Zhakhovskii, Department of Physics, University of South Florida, Tampa, FL 33620, USA Yu. N. Emirov, Nanomaterials and Nanomanufacturing Research Center, University of South Florida, Tampa, FL 33620, USA M. B. Agranat, Joint Institute for High Temperatures, Russian Academy of Sciences, ul. Izhorskaya 13/19, Moscow, 125412 Russia I. I. Oleinik, Department of Physics, University of South Florida, Tampa, FL 33620, USA S. I. Anisimov, Landau Institute for Theoretical Physics, Russian Academy of Sciences, Chernogolovka, Moscow region, 142432 Russia V. E. Fortov, Joint Institute for High Temperatures, Russian Academy of Sciences, ul. Izhorskaya 13/19, Moscow, 125412 Russia Journal JETP Letters Online ISSN 1090-6487 Print ISSN 0021-3640 Journal Volume Volume 95 Journal Issue Volume 95, Number 4
Print ISSN:
0021-3640
Electronic ISSN:
1090-6487
Topics:
Physics
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