X-ray spectroscopy of super-intense laser-produced plasmas for the study of nonlinear processes. Comparison with PIC simulations

E. Dalimier, A. Ya Faenov, E. Oks, P. Angelo, T. A. Pikuz, Yuji Fukuda, A Andreev, J. Koga, H. Sakaki, H. Kotaki, A. Pirozhkov, Y. Hayashi, I. Yu. Skobelev, S. A. Pikuz, T. Kawachi, M. Kando, K. Kondo, A Zhidkov, Eleanor Tubman, Nicholas Mark Henry ButlerRachel Dance, M. A. Alkhimova, N. Booth, J. Green, C Gregory, P, McKenna, N Woolsey, R. Kodama

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We present X-ray spectroscopic diagnostics in femto-second laser-driven experiments revealing nonlinear phenomena caused by the strong coupling of the laser radiation with the created plasma. Among those nonlinear phenomena, we found the signatures of the Two Plasmon Decay (TPD) instability in a laser-driven CO2 cluster-based plasma by analyzing the Langmuir dips in the profile of the O VIII Lyϵ line, caused by the Langmuir waves created at the high laser intensity 3 1018Wcm-2. With similar laser intensities, we reveal also the nonlinear phenomenon of the Second Harmonic Generation (SHG) of the laser frequency by analyzing the nonlinear phenomenon of satellites of Lyman δ and ϵ lines of Ar XVII. In the case of relativistic laser-plasma interaction we discovered the Parametric Decay Instability (PDI)-induced ion acoustic turbulence produced simultaneously with Langmuir waves via irradiation of thin Si foils by laser intensities of 1021Wcm-2.

Original languageEnglish
Article number012004
Number of pages7
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - 30 Mar 2017
EventXXIII International Conference on Spectral Line Shapes - The Culture and Congress Centre - Jordanki, Toruń, Poland
Duration: 19 Jun 201624 Jun 2016


  • femto-second laser-driven experiments
  • X-ray spectroscopic diagnostics
  • two plasmon decay instability
  • Langmuir waves
  • second harmonic generation
  • parametric decay instability
  • laser-plasma interaction
  • PIC simulation


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