A5022616838- Laser-induced spectroscopy and plasma
- Laser-Plasma Interactions and Diagnostics
- Atomic and Molecular Physics
- High-pressure geophysics and materials
- X-ray Spectroscopy and Fluorescence Analysis
- Laser-Matter Interactions and Applications
- Laser Design and Applications
- Ion-surface interactions and analysis
- Advanced X-ray Imaging Techniques
- Plasma Diagnostics and Applications
- Mass Spectrometry Techniques and Applications
- Nuclear Physics and Applications
- Thin-Film Transistor Technologies
- Magnetic confinement fusion research
- Electron and X-Ray Spectroscopy Techniques
- Glass properties and applications
- Spectroscopy and Laser Applications
- Advanced X-ray and CT Imaging
- Mineralogy and Gemology Studies
- Advanced Electron Microscopy Techniques and Applications
- Silicon and Solar Cell Technologies
- Magneto-Optical Properties and Applications
- Crystallography and Radiation Phenomena
- Material Dynamics and Properties
- Laser Material Processing Techniques
Czech Academy of Sciences
2012-2024
Czech Academy of Sciences, Institute of Physics
2015-2024
Czech Academy of Sciences, Institute of Plasma Physics
2014-2024
Extreme Light Infrastructure Beamlines
2023-2024
Joint Institute for High Temperatures
2023
Centre of Plasma Physics - Institute for Plasma Research
2023
École Polytechnique
1995-2019
Centre National de la Recherche Scientifique
2008-2019
Laboratoire de Physique des Plasmas
2008-2019
CEA Paris-Saclay
2019
ELI-Beamlines (ELI-BL), one of the three pillars Extreme Light Infrastructure endeavour, will be in a unique position to perform research high-energy-density-physics (HEDP), plasma physics and ultra-high intensity (UHI) (1022W/cm2) laser–plasma interaction. Recently need for HED laboratory was identified P3 (plasma platform) installation under construction ELI-BL an answer. The 10 PW laser makes possible fundamental topics from high-field new extreme states matter such as radiation-dominated...
Advanced X-ray spectroscopic methods provide unique and critical data to study matter under extreme environmental conditions induced by high-intensity high-energy lasers. The aim of this paper is contribute a contemporary discussion the role spectroscopy in investigation radiative properties strongly coupled, highly correlated, frequently weakly emissive plasma systems formed irradiated sub-petawatt petawatt class After reviewing different crystal spectrometers, high-resolution diagnostic...
The physics of laser-plasma interaction is studied on the Shenguang III prototype laser facility under conditions relevant to inertial confinement fusion designs. A sub-millimeter-size underdense hot plasma created by ionization a low-density plastic foam four high-energy (3.2 kJ) beams. An beam fired with delay permitting evaluation excitation parametric instabilities at different stages evolution. Multiple diagnostics are used for characterization, scattered radiation, and accelerated...
New x-ray wavelength (energy) and width measurements are reported for a number of elements from $47\ensuremath{\le}Z\ensuremath{\le}92$. The x rays were produced with the use an electron Van de Graaff, made two-axis flat-crystal transmission spectrometer equipped angle-measuring interferometers. new here, combined other high-precision wavelengths, form moderately extensive data base comparison theoretical calculations. Comparison recent revisions previously available all-$Z$ calculation...
An experiment was performed using the PALS laser to study laser-target coupling and laser-plasma interaction in an intensity regime ≤1016 W/cm2, relevant for “shock ignition” approach Inertial Confinement Fusion. A first beam at low used create extended preformed plasma, a second one strong shock. Pressures up 90 Megabars were inferred. Our results show importance of details energy transport overdense region.
Laser–plasma interaction (LPI) at intensities $10^{15}{-}10^{16}~\text{W}\cdot \text{cm}^{-2}$ is dominated by parametric instabilities which can be responsible for a significant amount of non-collisional absorption and generate large fluxes high-energy nonthermal electrons. Such regime paramount importance inertial confinement fusion (ICF) in particular the shock ignition scheme. In this paper we report on an experiment carried out Prague Asterix Laser System (PALS) facility to investigate...
Abstract The design and the early commissioning of ELI-Beamlines laser facility’s 30 J, fs, 10 Hz HAPLS (High-repetition-rate Advanced Petawatt Laser System) beam transport (BT) system to P3 target chamber are described in detail. It is world’s first with 54 m length, longest distance high average power petawatt (PW) BT ever built. connects pulse compressor via injector periscope 4.5 diameter plasma physics group hall E3. largest facility was connected system. major engineering challenges...
Abstract The ion temperature in laser-heated foam materials can be considerably higher than the electron due to internal collisions of plasma flows originating from heterogeneous microstructure. 
Recently, we have developed a novel hybrid multiscale model for laser-foam interaction that successfully reproduces experimentally measured heat front propagation subcritical foams various densities. However, when applied undercritical with average density closer critical, simulations...
An experimental and numerical analysis of the collision two plasmas produced from laser-exploded Al/Al Al/Mg pairs foils is presented. Various imaging spectroscopic x-ray techniques have been used to diagnose over a broad range intertarget distances laser intensities. Ion temperatures in 10 keV measured Doppler broadening. Electron densities deduced line ratios interpenetration determined by spatial extent Mg Al lines. Eulerian multifluid simulations developed coupled atomic physics...
We have focused a beam (BL3) of FLASH (Free-electron LASer in Hamburg: λ = 13.5 nm, pulse length 15 fs, energy 10-40 μJ, 5Hz) using fine polished off-axis parabola having focal 270 mm and coated with Mo/Si multilayer an initial reflectivity 67% at nm.The OAP was mounted aligned picomotor controlled sixaxis gimbal.Beam imprints on poly(methyl methacrylate) -PMMA were used to measure focus the create isochoric heating various slab targets.Results show spot has diameter 1μm.Observations...
Abstract The paper is directed to the study of high-temperature plasma and ablation formation as well efficiency laser energy transfer solid targets irradiated by pulses with intensities 1–50 PW/cm 2 duration 200–300 ps, i.e., at conditions corresponding characteristics spike designed generate igniting shock wave in ignition concept. experiments have been performed Prague Asterix Laser System. iodine delivered 250 ps (full width half maximum) range 100–600 J first (λ 1 = 1.315 µm) third 3...
This paper describes the results of a series experiments conducted with PALS laser at intensities interest for shock ignition approach to inertial fusion.In particular, we addressed generation hot electrons (HE) (determining their average energy and number), as well parametric instabilities which are producing them.In addition, studied impact HE on formation dynamics strong shocks.
In a series of experiments performed with laser-irradiated planar targets at the PALS laser facility, generation suprathermal electrons has been studied conditions relevant for development shock ignition approach to inertial confinement fusion. A simultaneous application high-collection-efficiency K-shell imaging high resolution x-ray spectroscopy offers novel hot electron diagnosis non-coated or moderately coated, medium-atomic-number targets, where contribution...
Shock ignition (SI) is an appealing approach in the inertial confinement scenario for and burn of a pre-compressed fusion pellet. In this scheme, strong converging shock launched by laser irradiation at intensity Iλ2 > 1015 W cm−2 µm2 end compression phase. regime, laser–plasma interactions are characterized onset variety instabilities, including stimulated Raman scattering, Brillouin scattering two plasmon decay, accompanied generation population fast electrons. The effect electrons on...
The first space-time resolved spontaneous magnetic field (SMF) measurements realized on Prague Asterix Laser System are presented. SMF was generated as a result of single laser beam (1.315 μm) interaction with massive planar targets made materials various atomic numbers (plastic and Cu). Measured confirmed azimuthal geometry their maximum amplitude reached the value 10 MG at energy 250 J for both target materials. It demonstrated that spatial distributions these fields associated character...
Parametric instabilities at laser intensities in the range (2–6) × 1015 W/cm2 (438 nm, 250 ps, 100–300 J) have been investigated planar geometry Prague Asterix Laser System facility via calorimetry and spectroscopy. The density scalelength of plasma was varied by using an auxiliary pulse to form a preplasma before arrival main beam changing delay between two pulses. Experimental data show that Stimulated Brillouin Scattering (SBS) is more effective than Raman (SRS) degrading laser-plasma...
Abstract Suprathermal electrons are routinely generated in high-intensity laser produced plasmas via instabilities driven by non-linear laser-plasma interaction. Their accurate characterization is crucial for the performance of inertial confinement fusion as well performing experiments laboratory astrophysics and general high-energy-density physics. Here, we present studies non-thermal atomic states excited suprathermal kJ-ns-laser plasmas. Highly spatially spectrally resolved X-ray emission...
L3-HAPLS (High-repetition-rate Advanced Petawatt Laser System) at ELI (Extreme Light Infrastructure) Beamlines currently delivers 0.45 PW pulses (12 J in 27 fs) 3.3 Hz repetition rate. A fresh target surface for every shot was placed the laser focus using an in-house tape system designed to withstand large intensities and energies. It has been tested different material thicknesses (25 7.6 µm), while delivered shots energies ranging from 1 12 J. technical description of is given. The device...
Abstract We report results and modelling of an experiment performed at the Target Area West Vulcan laser facility, aimed investigating laser–plasma interaction in conditions that are interest for shock ignition scheme inertial confinement fusion (ICF), is, intensity higher than ${10}^{16}$ $\mathrm{W}/{\mathrm{cm}}^2$ impinging on a hot ( $T>1$ keV), inhomogeneous long scalelength pre-formed plasma. Measurements show significant stimulated Raman scattering (SRS) backscattering $\sim...
Successful applications of the vertical-geometry Johann spectrometer (VJS) in advanced plasma spectroscopy are reported. Different experimental configurations discussed, and a complete quantitative analysis function including transfer spectral lines is presented. The method for reconstruction spectra emitted from extended, quasilinear sources described; precision attainable possible errors discussed. Due to combination high collection efficiency, one-dimensional spatial resolution,...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation T. Pisarczyk, S. Yu. Gus'kov, Z. Kalinowska, J. Badziak, D. Batani, L. Antonelli, G. Folpini, Y. Maheut, F. Baffigi, Borodziuk, Chodukowski, Cristoforetti, N. Demchenko, A. Gizzi, Kasperczuk, P. Koester, E. Krousky, Labate, Parys, M. Pfeifer, O. Renner, Smid, Rosinski, Skala, R. Dudzak, Ullschmied, Pisarczyk;...
We report measurements of parametric instabilities and hot electron generation in a laser intensity regime up to 6 × 1015 W/cm2 , typical the shock ignition approach inertial fusion. Experiments performed at PALS laboratory Prague show that incident energy losses are dominated by Stimulated Brillouin Scattering (SBS) rather than Raman (SRS) or Two-Plasmon Decay (TPD). Results compared hydrodynamics simulations using code includes self-consistent calculations non-linear plasma interactions...
The collision of two plasmas produced from laser-exploded Al/Al and Al/Mg foils has been studied by x-ray diagnostics over a wide range experimental conditions. Ion temperatures about 10 keV have unambiguously inferred Doppler broadening. interpenetration distances determined the spatial extent Mg Al ion emission. comparison data with multifluid atomic physics simulations gives good understanding localization dynamics kinetic to thermal energy transfer in regime.