Abstract
The results of the first experiments devised to investigate the mixing of thin layers of Al and Au during the laser acceleration of flat three-layer targets of Si (5 μm), Al (2 μm), and Au (0.05–0.26 μm) by radiation converted to the second harmonic from the Iskra-4 iodine laser with an intensity of 4×1013−7×1013 W/cm2 (τ 0.5∼1 ns), which acts on the Si side of the target. A method for detecting the occurrence of mixing is developed. It is established that under the experimental conditions the thickness of the mixing region is at least ∼0.15 μm. The results of a theoretical analysis of the evolution of the disturbances leading to mixing are presented.
Similar content being viewed by others
References
G. G. Kochemasov, in Proceedings of the 23rd European Conference on Laser Interaction with Matter. Oxford, 19–23 September 1994, Institute of Physics Conference Series No. 140, (1995), p. 17.
M. D. Cable, S. P. Hatchett, J. A. Caird et al., Phys. Rev. Lett. 73, 2316 (1994).
V. A. Andronov, V. I. Kozlov, V. V. Nikiforov, A. N. Razin, and Yu. A. Yudin, Vopr. At. Nauki Tekh., Ser. Mat. Modelirovanie Fiz. Protsessov No. 2, 59 (1994).
V. A. Andronov, E. E. Meshkov, V. V. Nikiforov et al., Dokl. Akad. Nauk SSSR. 264, 76 (1982) [Sov. Phys. Doklady 27, 393 (1982)].
I. N. Voronich, V. A. Eroshenko, A. I. Zaretskii et al., Izv. Akad. Nauk SSSR., Ser. Fiz. 54, 2016 (1990).
A. Raven, H. Azechi, T. Yamanaka, and C. Yamanaka, Phys. Rev. Lett. 47, 1049 (1981).
P. A. Holstein, B. Meyer, M. Rostaing et al., C. R. Acad. Sci. 307, 211 (1988).
N. V. Pleshivtsev, Cathode Sputtering [in Russian], Atomizdat, Moscow (1968).
V. P. Lazarchuk, V. M. Murugov, S. I. Petrov, and A. V. Senik, Fiz. Plazmy 20, 101 (1994) [Plasma Phys. Repts. 20, 94 (1994)].
S. R. Gann and V. C. Rupert, in Laser Program Annual Report-1975, LLNL, UCRL-50021-75 (1975), p. 404.
S. A. Bel’kov and G. V. Dolgoleva, Vopr. At. Nauki Tekh., Ser. Mat. Modelirovanie Fiz. Protsessov (1), 59 (1992).
Additional information
Zh. Éksp. Teor. Fiz. 111, 882–888 (March 1997)
Deceased.
Rights and permissions
About this article
Cite this article
Andronov, V.A., Bel’kov, S.A., Bessarab, A.V. et al. Investigation of the turbulent mixing of thin layers of materials of different density during the laser acceleration of flat multilayer targets in the Iskra-4 facility. J. Exp. Theor. Phys. 84, 485–488 (1997). https://doi.org/10.1134/1.558166
Received:
Issue Date:
DOI: https://doi.org/10.1134/1.558166