Rarefaction after fast laser heating of thin metal film on a glass mount: spallation and inflation from one-dimensional to three-dimensional ablation flow

ORAL

Abstract

We numerically and experimentally consider the effect of subpicosecond Ti:sapp laser pump pulse onto 60-100 nm silver and gold films mounted onto a silica substrate. Pump pulse spalls out the film from the substrate. Influence of diameter of a laser irradiated spot 1-100 microns on a film surface is studied. A cupola like spallation shell is flying from the substrate. For the large spot the soft X-ray probe laser is used for measuring the ablation process. The research (NAI, VVZh, VAKh, DKI, YVP, KPM, AYF, TAP) has been performed under financial support from Russian Science Foundation (RSCF) (project No. 14-19-01599).

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Authors

  • Nail Inogamov

    • L. D. Landau Institute for Theoretical Physics, Russian Academy of Sciences, Chernogolovka, Russia

  • Viktor Khokhlov

    • L. D. Landau Institute for Theoretical Physics, Russian Academy of Sciences, Chernogolovka, Russia

  • Yury Petrov

    • L. D. Landau Institute for Theoretical Physics, Russian Academy of Sciences, Chernogolovka, Russia

  • Vasily Zhakhovsky

    • All-Russia Research Institute of Automatics, ROSATOM, Moscow, Russia

  • Kirill Migdal

    • All-Russia Research Institute of Automatics, ROSATOM, Moscow, Russia

  • Denis Ilnitsky

    • All-Russia Research Institute of Automatics, ROSATOM, Moscow, Russia

  • Noboru Hasegawa

    • Quantum Beam Science Center, Japan Atomic Energy Agency, Japan

  • Masaharu Nishikino

    • Quantum Beam Science Center, Japan Atomic Energy Agency, Japan

  • Mitsuru Yamagiwa

    • Quantum Beam Science Center, Japan Atomic Energy Agency, Japan

  • Masahiko Ishino

    • Quantum Beam Science Center, Japan Atomic Energy Agency, Japan

  • Tetsuya Kawachi

    • Quantum Beam Science Center, Japan Atomic Energy Agency, Japan

  • Anatoly Faenov

    • Institute for Academic Initiatives, Osaka University, Suita, Osaka, Japan

  • Tatiana Pikuz

    • Graduate School of Engineering, Osaka University, Suita, Osaka, Japan

  • Shintaro Takayoshi

    • Faculty of Engineering, The University of Tokushima, Japan

  • Takashi Eyama

    • Faculty of Engineering, The University of Tokushima, Japan

  • Naoya Kakimoto

    • Faculty of Engineering, The University of Tokushima, Japan

  • Takuro Tomita

    • Faculty of Engineering, The University of Tokushima, Japan

  • Motoyoshi Baba

    • Institute of Solid State Physics, University of Tokyo, Japan

  • Yasuo Minami

    • Institute of Solid State Physics, University of Tokyo, Japan

  • Tohru Suemoto

    • Institute of Solid State Physics, University of Tokyo, Japan