4–5 Nov 2021
Helmholtz-Zentrum Dresden-Rossendorf
Europe/Berlin timezone

Synthetic probing of ionization dynamics in the solid density plasmas driven by relativistic laser pulses using resonant SAXS

5 Nov 2021, 13:35
25m
Building 106, Hörsaal room 255 (Helmholtz-Zentrum Dresden-Rossendorf)

Building 106, Hörsaal room 255

Helmholtz-Zentrum Dresden-Rossendorf

Bautzner Landstraße 400 01328 Dresden Zoom-Link: https://us02web.zoom.us/j/86275700441?pwd=Q29VUlF2MXVnQUlVL1M0TU9KZmd4QT09 Meeting ID: 862 7570 0441 Passcode: PuBTU9
Talk Talks

Speaker

Lingen Huang (Helmholtz-Zentrum Dresden-Rossendorf)

Description

Understanding the ionization dynamics is fundamentally important in the interaction of a relativistic laser pulse with a solid density target. In this talk, firstly we present the particle-in-cell (PIC) simulations with various collisional ionization and potential models, showing the target heating, magnetic instabiltiy and plasma resistivity are highly model-dependent \cite{Huang2016,Huang2017}. Secondly, we propose to probe the evolution of ionic density at specific bound-bound resonances by scanning the XFEL photon energy via established SAXS method, which is cable to access the spatial–temporal resolution down to few nanometers and femtoseconds simultaneously. The plasma opacity plays a key role of the XFEL absorption, which in turn affects the resonant SAXS pattern contributed by the imaginary part of ionic scattering form factor\cite{Kluge2016}. We present the calculation of plasma opacity using the atomic collisional-radiative code SCFLY and further simulate the synthetic resonant SAXS imaging pattern which shows strong asymmetric feature. Our recently performed experiment reveals the connection of the temporal evolution of the asymmetry signal and ionization dynamics \cite{Gaus2020}.

[1] L. G. Huang, T. Kluge, and T. E. Cowan, Physics of Plasmas23, 063112 (2016).[2] L. G. Huang, H. P. Schlenvoigt, H. Takabe, and T. E. Cowan, Physics of Plasmas24, 103115 (2017).
[3] T. Kluge, M. Bussmann, H.-K. Chung, C. Gutt, L. G. Huang, M. Zacharias, U. Schramm, and T. E.Cowan, Physics of Plasmas23, 033103 (2016).
[4] L. Gaus, L. Bischoff, M. Bussmann, E. Cunningham, C. B. Curry, E. Galtier, M. Gauthier, A. L.Garc ́ıa, M. Garten, S. Glenzer, J. Grenzer, C. Gutt, N. J. Hartley, L. Huang, U. H ̈ubner, D. Kraus,H. J. Lee, E. E. McBride, J. Metzkes-Ng, B. Nagler, M. Nakatsutsumi, J. Nikl, M. Ota, A. Pelka,I. Prencipe, L. Randolph, M. R ̈odel, Y. Sakawa, H.-P. Schlenvoigt, M.ˇSm ́ıd, F. Treffert, K. Voigt,K. Zeil, T. E. Cowan, U. Schramm, and T. Kluge, “Probing ultrafast laser plasma processes insidesolids with resonant small-angle x-ray scattering,” (2020), arXiv:2012.07922 [physics.plasm-ph].

Primary author

Lingen Huang (Helmholtz-Zentrum Dresden-Rossendorf)

Co-authors

Thomas Kluge (HZDR) Mr L Gaus (Helmholtz-Zentrum Dresden-Rossendorf,) Hans-Peter Schlenvoigt (HZDR) Thomas E. Cowan (HZDR)

Presentation materials

There are no materials yet.