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Laser interactions with low-density plastic foams

Published online by Cambridge University Press:  30 August 2005

J. LIMPOUCH
Affiliation:
Czech Technical University in Prague, FNSPE, Prague, Czech Republic Institute of Physics, AS CR, Prague, Czech Republic
N.N. DEMCHENKO
Affiliation:
P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, Russia
S.YU. GUS'KOV
Affiliation:
P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, Russia
A.I. GROMOV
Affiliation:
P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, Russia
M. KALAL
Affiliation:
Czech Technical University in Prague, FNSPE, Prague, Czech Republic
A. KASPERCZUK
Affiliation:
Institute of Plasma Physics & Laser Microfusion, Warsaw, Poland
V.N. KONDRASHOV
Affiliation:
Troitsk Institute of Innovation and Thermonuclear Research, Troitsk, Russia
E. KROUSKY
Affiliation:
Institute of Physics, AS CR, Prague, Czech Republic
K. MASEK
Affiliation:
Institute of Physics, AS CR, Prague, Czech Republic
M. PFEIFER
Affiliation:
Institute of Physics, AS CR, Prague, Czech Republic
P. PISARCZYK
Affiliation:
Warsaw University of Technology, ICS, Warsaw, Poland
T. PISARCZYK
Affiliation:
Institute of Plasma Physics & Laser Microfusion, Warsaw, Poland
K. ROHLENA
Affiliation:
Institute of Physics, AS CR, Prague, Czech Republic
V.B. ROZANOV
Affiliation:
P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, Russia
M. SINOR
Affiliation:
Czech Technical University in Prague, FNSPE, Prague, Czech Republic
J. ULLSCHMIED
Affiliation:
Institute of Plasma Physics, AS CR, Prague, Czech Republic

Abstract

Interactions of sub-nanosecond pulses of kJ-class iodine laser “PALS” with low-density foams and acceleration of Al foils by the pressure of the heated foam matter are investigated here, both experimentally and theoretically. X-ray streak camera is used for evaluation of the speed of energy transfer through the porous foam material. The shock-wave arrival on the rear side of the target is monitored by optical streak camera. Accelerated foil velocities, measured by three-frame optical interferometers, and shadowgraphs, reach up to 107 cm/s. The accelerated foil shape is smooth without any signature of small-scale structures present in the incident laser beam. Conversion efficiencies as high as 14% of the laser energy into the kinetic energy of Al foil are derived. Experimental results compare well with our two-dimensional hydrodynamics simulations and with an approximate analytical model.

Type
Research Article
Copyright
© 2005 Cambridge University Press

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Footnotes

This paper was presented at the 28th ECLIM conference in Rome, Italy.

References

REFERENCES

Borisenko, N.G., Akunets, A.A., Bushuev, V.S., Dorogotovtsev, V.M. & Merkuliev, Yu.A. (2003). Motivation and fabrication methods for inertial confinement fusion and inertial fusion energy targets. Laser Part. Beams 21, 505509.Google Scholar
Caruso, A., Strangio, C., Gus'kov, S.Yu. & Rozanov, V.B. (2000). Interaction experiments of laser light with low density supercritical foams at the AEEF ABC facility. Laser Part. Beams 18, 2534.Google Scholar
Desselberger, M., Jones, M.W., Edwards, J., Dunne, M. & Willi, O. (1992). Nonuniformity imprint on the ablation surface of laser-irradiated targets. Phys. Rev. Lett. 68, 15391542.Google Scholar
Gus'kov, S.Yu., Gromov, A.I., Merkul'ev, Yu.A., Rozanov, V.B., Nikishin, V.V., Tishkin, V.F., Zmitrenko, N.V., Gavrilov, V.V., Gol'tsov, A.A., Kondrashov, V.N., Kovalsky, N.V., Pergament, M.I., Garanin, S.G., Kirillov, G.A., Sukharev, S.A., Caruso, A. & Strangio, C. (2000). Nonequilibrium laser-produced plasma of volume-structured media and ICF applications. Laser Part. Beams 18, 110.Google Scholar
Gus'kov, S.Yu., Zmitrenko, N.V. & Rozanov, V.B. (1995). Laser-greenhouse thermonuclear target with distributed absorption of laser energy. JETP 81, 296304.Google Scholar
Gus'kov, S.Yu. (2005). Thermonuclear gain and parameters of fast ignition ICF-targets. Laser Part. Beams 23, 255260.Google Scholar
Gus'kov, S.Yu., Kas'anov, Yu.S., Koshevoi, M.O., Rozanov, V.B., Rupasov, A.A. & Shikanov A.S. (1999). Scattering and transmission of laser radiation at the heating of low-density foam targets. Laser Part. Beams 17, 287291.Google Scholar
Gus'kov, S.Yu., Koshevoi, M.O., Rozanov, V.B., Rupasov, A.A., Shikanov, A.S. & Kas'anov, Yu.S. (1996). Dynamics of high-temperature plasma formation during laser irradiation of three-dimensionally structured, low-density matter. JETP Letters 64, 502508.Google Scholar
Hall, T., Batani, D., Nazarov, W., Koenig, M. & Benuzzi, A. (2002). Recent advances in laser–plasma experiments using foams. Laser Part. Beams 20, 303316.Google Scholar
Iskakov, A.B., Demchenko, N.N., Lebo, I.G., Rozanov, V.B. & Tishkin, V.F. (2003). 2D Lagrangian code “ATLANT-HE” for simulation of laser-plasma interaction with allowance for hot electron generation and transport. Proc. SPIE 5228, 143150.Google Scholar
Jungwirth, K. (2005). Recent highlights of the PALS research programme. Laser Part. Beams 23, 177182.Google Scholar
Jungwirth, K., Cejnarova, A., Juha, L., Kralikova, B., Krasa, J., Krousky, E., Krupickova, P., Laska, L., Masek, K., Mocek, T., Pfeifer, M., Prag, A., Renner, O., Rohlena, K., Rus, B., Skala, J., Straka, P. & Ullschmied, J. (2001). The Prague Asterix Laser System. Phys. Plasmas 8, 24952501.Google Scholar
Kalal, M., Limpouch, J., Krousky, E., Masek, K., Rohlena, K., Straka, P., Ullschmied, J., Kasperczuk, A., Pisarczyk, T., Gus'kov, S.Yu., Gromov, A.I., Rozanov, V.B. & Kondrashov, V.N. (2003). Thermal smoothing by laser-produced plasma of porous matter. Fusion Sci. Technol. 43, 275281.Google Scholar
Metzler, N., Velikovich, A.L. & Gardner, J.H. (1999). Reduction of early-time perturbation growth in ablatively driven laser targets using tailored density profiles. Phys. Plasmas 6, 32833295.Google Scholar
Pisarczyk, T., Arendzikowski, R., Parys, P. & Patron, Z. (1994). Polari-interferometer with automatic images processing for laser plasma diagnostics. Laser Part. Beams 12, 549562.Google Scholar
Sadot, O., Rikanati, A., Oron, D., Ben-Dor, G. & Shvarts, D. (2003). An experimental study of the high Mach number and high initial-amplitude effects on the evolution of the single-mode Richtmyer–Meshkov instability. Laser Part. Beams 21, 341346.Google Scholar