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ELASTIC-PLASTIC PHENOMENA AND PROPAGATION OF STRONG SHOCK WAVES UNDER THE ACTION OF FEMTOSECOND LASER PULSES N.A.Inogamov, V.A. Khokhlov L.D.Landau ITP.

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Presentation on theme: "ELASTIC-PLASTIC PHENOMENA AND PROPAGATION OF STRONG SHOCK WAVES UNDER THE ACTION OF FEMTOSECOND LASER PULSES N.A.Inogamov, V.A. Khokhlov L.D.Landau ITP."— Presentation transcript:

1 ELASTIC-PLASTIC PHENOMENA AND PROPAGATION OF STRONG SHOCK WAVES UNDER THE ACTION OF FEMTOSECOND LASER PULSES N.A.Inogamov, V.A. Khokhlov L.D.Landau ITP RAS, Chernogolovka, Russia V.V.Zhakhovsky, JIHT RAS, Moscow, Russia University of South Florida, Tampa, Florida, USA

2 Elbrus 2010. V. A. Khokhlov, N. A. Inogamov, S. I. Anisimov et. al., INVESTIGATION OF TWO-TEMPERATURE RELAXATION IN THIN FOIL ON A GLASS SUBSTRATE INITIATED BY THE ACTION OF ULTRASHORT LASER PULSE. Slide 18

3 Elbrus 2010. V. A. Khokhlov, N. A. Inogamov, S. I. Anisimov et. al., INVESTIGATION OF TWO-TEMPERATURE RELAXATION IN THIN FOIL ON A GLASS SUBSTRATE INITIATED BY THE ACTION OF ULTRASHORT LASER PULSE. Slide 2 EOS: Khishchenko et al., http://teos.ficp.ac.ru/rusbank /

4 Comparison of elastic and plastic Hugoniot with experiment [ M.B. Agranat, S.I. Anisimov, S.I. Ashitkov et.al, JETP Letters, 91 (2010) 471, S.I. Ashitkov, M.B. Agranat, G.I. Kanel’ et. al, JETP Letters, 92 (2010) 516 ] (crosses). Comparison of elastic and plastic Hugoniot with experiment [ M.B. Agranat, S.I. Anisimov, S.I. Ashitkov et.al, JETP Letters, 91 (2010) 471, S.I. Ashitkov, M.B. Agranat, G.I. Kanel’ et. al, JETP Letters, 92 (2010) 516 ] (crosses).

5 Elastic (Sel ) and plastic (Spl ) Hugoniot curves. The corresponding to previous slide segment of MD Sel covers the pressure range 7.4–33 GPa. Markers circles obtained by MD calculations. The lower circle with P = 7.4 GPa corresponds to the lower circle on previous slide.

6 Plastic and elastic Hugoniot (continuation of the plastic Hugoniot from HEL to HEL*) and Rayleigh lines

7 Propagation from left to right of an elastic precursor and plastic front at influence of an laser pulse with conditions from work [ R. Evans, A.D. Badger, F. Fallies et. al., Phys. Rev. Lett., 77 (1996) 3359 ]. MD - a continuous curve, 2T-hd - a shaped curve. The elastic zone with the thickness del = 70 nm between an elastic shock wave (jump on the right) and plastic front (jump at the left) is noted by a bilateral horizontal arrow. The boundary between Al film d film = 400 nm and glass is shown by vertical line B.

8 Displacement of the boundary with the glass Δx at passage of compression wave through the border. Experiment [ R. Evans, A.D. Badger, F. Fallies et. al., Phys. Rev. Lett., 77 (1996) 3359 ] and MD. Horizontal arrow indicates elastic precursor. Displacement of the boundary with the glass Δx at passage of compression wave through the border. Experiment [ R. Evans, A.D. Badger, F. Fallies et. al., Phys. Rev. Lett., 77 (1996) 3359 ] and MD. Horizontal arrow indicates elastic precursor.

9 Plastic and elastic Hugoniot (continuation of the plastic Hugoniot from HEL to HEL*) and Rayleigh lines

10 The elastic-plastic response of aluminum films to ultrafast laser-generated shocks V. H. Whitley, S. D. McGrane, D. E. Eakins, C. A. Bolme, D. S. Moore, and J. F. Bingert, JOURNAL OF APPLIED PHYSICS 109, 013505, (2011)

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12 Thank you for your attention! Physics of Extreme States of Matter — 2011, Chernogolovka, 2011, p. 38-41 Оптический журнал, 2011, 13, в. 8


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