We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Hydrodynamics driven by ultrashort laser pulse: simulations and the optical pump-X-ray probe experiment.
- Authors
Inogamov, N.; Zhakhovsky, V.; Hasegawa, N.; Nishikino, M.; Yamagiwa, M.; Ishino, M.; Agranat, M.; Ashitkov, S.; Faenov, A.; Khokhlov, V.; Ilnitsky, D.; Petrov, Yu.; Migdal, K.; Pikuz, T.; Takayoshi, S.; Eyama, T.; Kakimoto, N.; Tomita, T.; Baba, M.; Minami, Y.
- Abstract
Spatial structures of ablative mass flow produced by femtosecond laser pulses are studied. In experiments with a gold film, the Ti:sapp laser pulse having a focal size of 100 microns on a target was used, while a soft X-ray probe pulse was utilized for diagnostics. The experimental data are compared with simulated mass flows obtained by two-temperature hydrodynamics and molecular dynamics methods. Simulation shows evolution of a thin surface layer pressurized after electron-ion thermalization, which leads to melting, cavitation and formation of spallation liquid layer. The calculated asymptotic surface velocity of this layer as a function of fluence is in reasonably good agreement with experimental data.
- Subjects
HYDRODYNAMICS; ULTRASHORT laser pulses; MOLECULAR dynamics; CRYSTAL structure; LASER ablation; FEMTOSECOND lasers; OPTICAL pumping; X-rays
- Publication
Applied Physics B: Lasers & Optics, 2015, Vol 119, Issue 3, p413
- ISSN
0946-2171
- Publication type
Article
- DOI
10.1007/s00340-015-6039-7