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1. Micron-scale phenomena observed in a turbulent laser-produced plasma

Author

Nobuki Kamimura, Tatiana Pikuz, Gianluca Gregori, T. Yabuuchi, Norimasa Ozaki, S. A. Pikuz, Tommaso Vinci, K. Miyanishi, Tadashi Togashi, Kento Katagiri, P. Mabey, Yuhei Umeda, V. Bouffetier, Bruno Albertazzi, Keiichi Sueda, G. Rigon, Olivier Poujade, F. Barbato, Makina Yabashi, R. Kodama, Alexis Casner, M. Koenig, Emeric Falize, Y. Inubushi, S. S. Makarov, M. J.-E. Manuel, Laboratoire pour l'utilisation des lasers intenses (LULI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), and Institute for Open and Transdisciplinary Research Initiative

Subjects
[PHYS.PHYS.PHYS-FLU-DYN]Physics [physics]/Physics [physics]/Fluid Dynamics [physics.flu-dyn], Science, General Physics and Astronomy, Imaging techniques, 7. Clean energy, 01 natural sciences, General Biochemistry, Genetics and Molecular Biology, Spectral line, 010305 fluids & plasmas, law.invention, Physics::Fluid Dynamics, Fluid dynamics, law, Physics::Plasma Physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Inertial confinement fusion, Physics, Multidisciplinary, Fluid dynamics, Imaging techniques, Laser-produced plasmas, Scattering, Turbulence, General Chemistry, Plasma, Laser-produced plasmas, Laser, Computational physics, Physics::Space Physics, Physics::Accelerator Physics, Beam (structure)
Abstract

Turbulence is ubiquitous in the universe and in fluid dynamics. It influences a wide range of high energy density systems, from inertial confinement fusion to astrophysical-object evolution. Understanding this phenomenon is crucial, however, due to limitations in experimental and numerical methods in plasma systems, a complete description of the turbulent spectrum is still lacking. Here, we present the measurement of a turbulent spectrum down to micron scale in a laser-plasma experiment. We use an experimental platform, which couples a high power optical laser, an x-ray free-electron laser and a lithium fluoride crystal, to study the dynamics of a plasma flow with micrometric resolution (~1μm) over a large field of view (>1 mm2). After the evolution of a Rayleigh–Taylor unstable system, we obtain spectra, which are overall consistent with existing turbulent theory, but present unexpected features. This work paves the way towards a better understanding of numerous systems, as it allows the direct comparison of experimental results, theory and numerical simulations. Turbulence effects explored use macroscale systems in general. Here the authors generate a turbulent plasma using laser irradiation of a solid target and study the dynamics of the plasma flow at the micron-scale by using scattering of an XFEL beam.

Published
2021

2. Measuring the structure and equation of state of polyethylene terephthalate at megabar pressures

Author

J Lütgert, Hae Ja Lee, S. Brown, Peihao Sun, Tilo Döppner, Dominik Kraus, Thomas E. Cowan, Emma McBride, S. H. Glenzer, Maximilian Schörner, Luke Fletcher, Irene Prencipe, Philip Heimann, A. Laso Garcia, A. K. Schuster, A. Pelka, N. J. Hartley, Roger Falcone, Jan Vorberger, Tommaso Vinci, Alison Saunders, Melanie Rödel, Alessandra Benuzzi-Mounaix, Eric Cunningham, Dirk O. Gericke, M. Schölmerich, Eric Galtier, K. Voigt, Alessandra Ravasio, Technische Universität Dresden = Dresden University of Technology (TU Dresden), Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Laboratoire pour l'utilisation des lasers intenses (LULI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), SLAC National Accelerator Laboratory (SLAC), Stanford University, Lawrence Livermore National Laboratory (LLNL), Lawrence Berkeley National Laboratory [Berkeley] (LBNL), University of Warwick [Coventry], University of California [Berkeley], University of California, European XFEL Gmbh, University of California [Berkeley] (UC Berkeley), and University of California (UC)

Subjects
Diffraction, Equation of state, Materials science, Science, Ab initio, Thermodynamics, Bioengineering, 01 natural sciences, Article, law.invention, Molecular dynamics, chemistry.chemical_compound, Condensed Matter::Materials Science, law, 0103 physical sciences, Polyethylene terephthalate, Planetary science, 010306 general physics, 010303 astronomy & astrophysics, Pyrometer, Theory and computation, Laboratory astrophysics, [PHYS]Physics [physics], Multidisciplinary, Laser-produced plasmas, Shock (mechanics), chemistry, Medicine, Density functional theory
Abstract

We present structure and equation of state (EOS) measurements of biaxially orientated polyethylene terephthalate (PET, $$({\hbox {C}}_{10} {\hbox {H}}_8 {\hbox {O}}_4)_n$$ ( C 10 H 8 O 4 ) n , also called mylar) shock-compressed to ($$155 \pm 20$$ 155 ± 20 ) GPa and ($$6000 \pm 1000$$ 6000 ± 1000 ) K using in situ X-ray diffraction, Doppler velocimetry, and optical pyrometry. Comparing to density functional theory molecular dynamics (DFT-MD) simulations, we find a highly correlated liquid at conditions differing from predictions by some equations of state tables, which underlines the influence of complex chemical interactions in this regime. EOS calculations from ab initio DFT-MD simulations and shock Hugoniot measurements of density, pressure and temperature confirm the discrepancy to these tables and present an experimentally benchmarked correction to the description of PET as an exemplary material to represent the mixture of light elements at planetary interior conditions.

Published
2021

3. Numerical study of Langmuir wave coalescence in laser-plasma interaction

Author

François Amiranoff, J.-R. Marquès, L. Lancia, Pascal Loiseau, C. Briand, Mickael Grech, Tommaso Vinci, Sylvie Depierreux, Caterina Riconda, F. Perez, Laboratoire pour l'utilisation des lasers intenses (LULI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), and perez, frederic

Subjects
Physics, Interplanetary medium, FOS: Physical sciences, Plasma, Condensed Matter Physics, Laser, Polarization (waves), Plasma oscillation, 01 natural sciences, Instability, Spectral line, Physics - Plasma Physics, 010305 fluids & plasmas, law.invention, Computational physics, Plasma Physics (physics.plasm-ph), law, [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph], [PHYS.PHYS.PHYS-PLASM-PH] Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph], 0103 physical sciences, Cathode ray, 010306 general physics, Astrophysics::Galaxy Astrophysics, ComputingMilieux_MISCELLANEOUS
Abstract

International audience; Type-III-burst radio signals can be mimicked in the laboratory via laser-plasma interaction. Instead of an electron beam generating Langmuir waves (LW) in the interplanetary medium, the LWs are created by a laser interacting with a millimeter-sized plasma through the stimulated Raman instability. In both cases, the LWs feed the Langmuir decay instability which scatters them in several directions. The resulting LWs may couple to form electromagnetic emission at twice the plasma frequency, which has been detected in the interplanetary medium, and recently in a laboratory laser experiment [Marquès et al. Phys. Rev. Lett. 124, 135001 (2020)]. This article presents the first numerical analysis of this laser configuration using particle-in-cell simulations, providing details on the wave spectra that are too difficult to measure in experiments. The role of some parameters is addressed, with a focus on laser intensity, in order to illustrate the behavior of the electromagnetic emission's angular distribution and polarization.

Published
2021

4. Effect of plasma hydrodynamics on laser-produced bremsstrahlung MeV photon dose

Author

F. Hannachi, T. Bonnet, Tommaso Vinci, Christian Courtois, M. Tarisien, F. Gobet, Jean-Raphael Marques, M. Versteegen, A. Compant La Fontaine, Laboratoire pour l'utilisation des lasers intenses (LULI), and Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, [PHYS]Physics [physics], Photon, Bremsstrahlung, Electron, Plasma, Radiation, Condensed Matter Physics, Laser, 01 natural sciences, 010305 fluids & plasmas, law.invention, Pulse (physics), Physics::Plasma Physics, law, 0103 physical sciences, Atomic physics, 010306 general physics, FOIL method, ComputingMilieux_MISCELLANEOUS
Abstract

We detail a laser plasma experiment aimed at enhancing laser to MeV electron energy coupling and then the x-ray dose produced when a short pulse laser propagates through a long preformed plasma. This study can be of interest not only for radiography of high areal mass objects requiring large doses but also for radiation safety of large scale laser facilities such as LMJ or NIF able to produce long preformed plasmas through which a short pulse laser can propagate. A low-intensity (∼1014 W/cm2) ns beam explodes a thin foil deposited on a high-Z solid target to generate an underdense plasma. An intense (>1018 W/cm2) and short (

Published
2020

5. White-line evolution in shocked solid Ta evidenced by synchrotron x-ray absorption spectroscopy

Author

Laurent Videau, Richard Gaal, Richard Briggs, P. Loubeyre, A. Benuzzi-Mounaix, Charles Pépin, R. Torchio, Tommaso Vinci, Sakura Pascarelli, V. Recoules, J. Bouchet, Olivier Mathon, E. Lescoute, Arnaud Sollier, F. Occelli, Laboratoire pour l'utilisation des lasers intenses (LULI), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
X-ray absorption spectroscopy, Materials science, Absorption spectroscopy, tantalum, xas, Astrophysics::High Energy Astrophysical Phenomena, Tantalum, Analytical chemistry, chemistry.chemical_element, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Omega, Synchrotron, law.invention, chemistry, law, [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph], Phase (matter), code, 0103 physical sciences, Density functional theory, 010306 general physics, 0210 nano-technology, Absorption (electromagnetic radiation)
Abstract

Time-resolved x-ray absorption experiments have been performed on shocked tantalum. Using a single 100 ps synchrotron x-ray pulse, nanosecond-lived equilibrium states of shocked solid Ta have been measured by ${L}_{3}$-edge absorption spectroscopy. The energy shift and intensity change of the white line were measured up to 130 GPa and 2000 K. The experimental results are discussed in light of density functional theory calculations and FEFF simulations. The absence of occurrence of the hcp-$\ensuremath{\omega}$ phase is suggested from the analysis of the shape of the white line.

Published
2020

6. Laser-Plasma Interaction Experiment for Solar Burst Studies

Author

François Amiranoff, Mickael Grech, F. Perez, Jean-Raphael Marques, Sylvie Depierreux, Caterina Riconda, L. Lancia, Tommaso Vinci, C. Briand, Andrea Sgattoni, Laboratoire pour l'utilisation des lasers intenses (LULI), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA (UMR_8109)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)

Subjects
General Physics and Astronomy, Interplanetary medium, FOS: Physical sciences, Electron, Plasma oscillation, 01 natural sciences, 7. Clean energy, Electromagnetic radiation, law.invention, law, Physics::Plasma Physics, [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph], 0103 physical sciences, 010306 general physics, ComputingMilieux_MISCELLANEOUS, Physics, Plasma, Laser, [PHYS.ASTR.SR]Physics [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR], Physics - Plasma Physics, Plasma Physics (physics.plasm-ph), Excited state, Physics::Space Physics, Atomic physics, Interplanetary spaceflight, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

A new experimental platform based on laser-plasma interaction is proposed to explore the fundamental processes of wave coupling at the origin of interplanetary radio emissions. It is applied to the study of electromagnetic (EM) emission at twice the plasma frequency ($2\omega_p$) observed during solar bursts and thought to result from the coalescence of two Langmuir waves (LWs). In the interplanetary medium, the first LW is excited by electron beams, while the second is generated by electrostatic decay of Langmuir waves. In the present experiment, instead of an electron beam, an energetic laser propagating through a plasma excites the primary LW, with characteristics close to those at near-Earth orbit. The EM radiation at $2\omega_p$ is observed at different angles. Its intensity, spectral evolution and polarization confirm the LW-coalescence scenario., Comment: Accepted for publication in Phys. Rev. Lett

Published
2020

7. Characterizing equation of state and optical properties of dynamically pre-compressed materials

Author

M. Guarguaglini, Tommaso Vinci, Jean-Alexis Hernandez, Alessandra Ravasio, R. Bolis, Alessandra Benuzzi-Mounaix, Erik Brambrink, Laboratoire pour l'utilisation des lasers intenses (LULI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), and ANR-16-CE31-0008,POMPEI,Propriétés de Mélanges de H2ONH3CH4 d'interet pour les intérieurs planétaires et les exoplanètes.(2016)

Subjects
Equation of state, Materials science, Thermodynamic state, FOS: Physical sciences, Warm dense matter, Condensed Matter Physics, Compression (physics), 01 natural sciences, 7. Clean energy, Measure (mathematics), Physics - Plasma Physics, 010305 fluids & plasmas, Computational physics, law.invention, Shock (mechanics), Plasma Physics (physics.plasm-ph), [SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology, 13. Climate action, law, Planet, [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph], 0103 physical sciences, 010306 general physics, ComputingMilieux_MISCELLANEOUS, Pyrometer
Abstract

Characterising materials at pressures of several megabar and temperatures of a few thousand Kelvin is critical for the understanding of the Warm Dense Matter regime and to improve planetary models as these conditions are typical of planets' interiors. Today, laser-driven shock compression is the only technique to achieve multimegabar pressures, but the associated temperatures are too high to be representative of planetary states. Double-shock compression represents an alternative to explore lower temperatures. Here we present a method to create well-controlled double-shocked states and measure their thermodynamic state and optical reflectivity using standard optical diagnostics (Doppler velocimetry and optical pyrometry) in a laser-driven shock experiment. This method, which does not require the support of hydrodynamical simulations, is based on the application of generalised Rankine-Hugoniot relations together with a self impedance mismatch technique. A validation experiment has been performed at the LULI2000 facility (\'Ecole Polytechnique, France) on a sample of $\alpha$-quartz. A temperature $60 \%$ lower than along the principal Hugoniot has been obtained at 7.5 Mbar., Comment: 10 pages, 7 figures

Published
2019

9. X-ray powder diffraction in reflection geometry on multi-beam kJ-type laser facilities

Author

A. Berlioux, Alessandra Ravasio, Alessandra Benuzzi-Mounaix, L. Duthoit, Tommaso Vinci, Stephanie Brygoo, Laurent Videau, Didier Loison, A. Denoeud, J.-A. Hernandez, M. Guarguaglini, Arnaud Sollier, Erik Brambrink, F. Lefevre, Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), University of Oslo (UiO), Laboratoire pour l'utilisation des lasers intenses (LULI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique de Rennes (IPR), Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS), Agence Nationale de la Recherche, ANR: ANR-16-CE31-0008Norges Forskningsråd: 223272, ANR-16-CE31-0008,POMPEI,Propriétés de Mélanges de H2ONH3CH4 d'interet pour les intérieurs planétaires et les exoplanètes.(2016), Université de Rennes 1 (UR1), and Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Diffraction, Atoms, Materials science, Thermodynamic conditions, X-ray detector, Geometry, 01 natural sciences, Plasma diagnostics, 010305 fluids & plasmas, law.invention, Optics, law, 0103 physical sciences, Instrumentation, Ultrafast lasers, Pyrometer, [PHYS]Physics [physics], 010302 applied physics, Pressure and temperature, X ray powder diffraction, business.industry, X ray lasers, Reflection geometry, X ray detectors, Structural measurements, Velocimetry, Laser, Beam plasma interactions, X-ray crystallography, Polycrystalline iron, Laser produced plasmas, business, Diffraction signals, Laser-plasma interactions, Powder diffraction, Laser beams, Transmission geometries
Abstract

International audience; An ultrafast x-ray powder diffraction setup for laser-driven dynamic compression has been developed at the LULI2000 laser facility. X-ray diffraction is performed in reflection geometry from a quasi-monochromatic laser-generated plasma x-ray source. In comparison to a transmission geometry setup, this configuration allows us to probe only a small portion of the compressed sample, as well as to shield the detectors against the x-rays generated by the laser-plasma interaction on the front side of the target. Thus, this new platform facilitates probing of spatially and temporarily uniform thermodynamic conditions and enables us to study samples of a large range of atomic numbers, thicknesses, and compression dynamics. As a proof-of-concept, we report direct structural measurements of the bcc-hcp transition both in shock and ramp-compressed polycrystalline iron with diffraction signals recorded between 2θ ∼30° and ∼150°. In parallel, the pressure and temperature history of probed samples is measured by rear-side visible diagnostics (velocimetry and pyrometry).

Published
2021

10. Decaying shock studies of phase transitions in MgO-SiO2 systems: Implications for the super-Earths' interiors

Author

Toshimori Sekine, Guillaume Morard, Alessandra Benuzzi-Mounaix, Yoichi Sakawa, F. Remus, Norimasa Ozaki, J. Bouchet, Tommaso Vinci, M. Guarguaglini, M. Koenig, E. Bambrink, R. Kodama, R. Bolis, François Guyot, Alessandra Ravasio, K. Miyanishi, R. Musella, and Tomokazu Sano

Subjects
Phase transition, Materials science, 010504 meteorology & atmospheric sciences, Shock (fluid dynamics), Analytical chemistry, Forsterite, engineering.material, Laser, 01 natural sciences, law.invention, Geophysics, law, Phase (matter), 0103 physical sciences, engineering, Enstatite, General Earth and Planetary Sciences, Periclase, 010306 general physics, 0105 earth and related environmental sciences, Phase diagram
Abstract

We report an experimental study of the phase diagrams of periclase (MgO), enstatite (MgSiO3) and forsterite (Mg2SiO4) at high pressures. We investigated with laser driven decaying shocks the pressure/temperature curves of MgO, MgSiO3 and Mg2SiO4 between 0.2-1.2 TPa, 0.12-0.5 TPa and 0.2-0.85 TPa respectively. A melting signature has been observed in MgO at 0.47 TPa and 9860 K, while no phase changes were observed neither in MgSiO3 nor in Mg2SiO4. An increasing of reflectivity of MgO, MgSiO3 and Mg2SiO4 liquids have been detected at 0.55 TPa -12 760 K, 0.15 TPa 7540 K, 0.2 TPa 5800 K, respectively. In contrast to SiO2, melting and metallization of these compounds do not coincide implying the presence of poor electrically conducting liquids close to the melting lines. This has important implications for the generation of dynamos in Super-earths mantles.

Published
2016

11. From quantum to classical modeling of radiation reaction: a focus on the radiation spectrum

Author

F. Amiranoff, Julien Derouillat, F. Niel, M. Lobet, Frederic Perez, Caterina Riconda, Mickael Grech, Tommaso Vinci, Laboratoire pour l'utilisation des lasers intenses (LULI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Maison de la Simulation (MDLS), and Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut National de Recherche en Informatique et en Automatique (Inria)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)

Subjects
Electromagnetic field, Photon, Electromagnetic spectrum, FOS: Physical sciences, Electron, 7. Clean energy, 01 natural sciences, 010305 fluids & plasmas, law.invention, law, [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph], 0103 physical sciences, 010306 general physics, Quantum, ComputingMilieux_MISCELLANEOUS, Physics, [PHYS.PHYS]Physics [physics]/Physics [physics], Plasma, Condensed Matter Physics, Laser, Physics - Plasma Physics, [PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph], Computational physics, Plasma Physics (physics.plasm-ph), Nuclear Energy and Engineering, Radiation reaction
Abstract

Soon available multi petawatt ultra-high-intensity (UHI) lasers will allow us to probe high-amplitude electromagnetic fields interacting with either ultra-relativistic electron beams or hot plasmas in the so-called moderately quantum regime. The correct modelling of the back-reaction of high-energy photon emission on the radiating electron dynamics, a.k.a. radiation reaction, in this regime is a key point for UHI physics. This will lead to both validation of theoretical predictions on the photon spectrum emitted during the laser-particle interaction and to the generation of high energy photon sources. In this paper we analyse in detail such emission using recently developed models to account for radiation reaction. We show how the predictions on the spectrum can be linked to a reduced description of the electron distribution function in terms of the first energy moments. The temporal evolution of the spectrum is discussed, as well as the parameters for which quantum effects induce hardening of the spectrum.

Published
2018

12. Production and Diagnostics of Dense Matter

Author

Erik Brambrink, N. Amadou, Alessandra Benuzzi-Mounaix, Tommaso Vinci, M. Harmand, Michel Koenig, Matthias Geissel, and A. Pelka

Subjects
Physics, Phase transition, Warm dense matter, Condensed Matter Physics, Laser, Compression (physics), law.invention, Computational physics, law, Planet, Relaxation (physics), Statistical physics, Material properties, Dense matter
Abstract

High energy lasers are a unique tool to create high pressure states above 10 Mbar at ns time scales, which allow to study material properties under these extreme conditions. These conditions are, for example, comparable with planetary cores, where material properties play an important role for the properties and evolution of a planet. The rapid compression allows also to study dynamic effects of phase transitions as compression times are comparable to relaxation times. We will present recent results of laser compression of iron reaching conditions of so called “super-Earth” cores. A description of the compression schemes as well as present and future diagnostics is presented. (© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

Published
2015

13. Dynamic fracture of tantalum under extreme tensile stress

Author

Haruhiko Ohashi, Takahisa Koyama, Tommaso Vinci, Michel Koenig, Takeshi Matsuoka, Satoshi Matsuyama, Kenjiro Takahashi, A. Faenov, Toshinori Yabuuchi, Guillaume Morard, Tatiana Pikuz, Kensuke Tono, Yuhei Umeda, Yasuhisa Sano, Norimasa Ozaki, Yoshinori Tange, Yusuke Seto, Makina Yabashi, Hirokatsu Yumoto, Bruno Albertazzi, Toshimori Sekine, T. Ishikawa, Osami Sakata, Takuo Okuchi, D. K. Ilnitsky, Tadashi Togashi, N. J. Hartley, Yuichi Inubushi, K. P. Migdal, Hideaki Habara, Tomoko Sato, Nail Inogamov, Vasily Zhakhovsky, Marion Harmand, Narangoo Purevjav, Ryosuke Kodama, Tetsuo Katayama, Kazuto Yamauchi, Andrew Krygier, Kazuo Tanaka, Emma McBride, Graduate School of Engineering Science [Toyonaka, Osaka], Osaka University, Laboratoire pour l'utilisation des lasers intenses (LULI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Photon Pioneers Center, Osaka University, Osaka University [Osaka], Dukhov Research Institute of Automatics, Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Muséum national d'Histoire naturelle (MNHN)-Institut de recherche pour le développement [IRD] : UR206-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Japan Synchrotron Radiation Research Institute [Hyogo] (JASRI), RIKEN - Institute of Physical and Chemical Research [Japon] (RIKEN), SLAC National Accelerator Laboratory (SLAC), Stanford University, European XFEL GmbH (XFEL), European XFEL GmbH, Okayama University, Institute for Academic Initiatives, Osaka University, National Institute for Materials Science (NIMS), Hiroshima University, Kobe University, Institute of laser Engineering, ANR-12-PDOC-0011,IronFEL,Le fer et ses alliages sous conditions extrèmes et sondés par diagnostiques X sur les installations FEL et lasers intenses(2012), and Graduate School of Engineering Science [Osaka]

Subjects
Shock wave, Diffraction, Dynamic fracture, Laser, 02 engineering and technology, 01 natural sciences, Atomic units, law.invention, law, 0103 physical sciences, Spallation, 010306 general physics, Research Articles, Applied Physics, [PHYS]Physics [physics], Multidisciplinary, XFEL, SciAdv r-articles, Strain rate, 021001 nanoscience & nanotechnology, Computational physics, spallation, Atomic scale, Femtosecond, 0210 nano-technology, Ultrashort pulse, Research Article
Abstract

The dynamic fracture of tantalum is observed at the atomic scale using an x-ray monitoring technique at the SACLA XFEL facility., The understanding of fracture phenomena of a material at extremely high strain rates is a key issue for a wide variety of scientific research ranging from applied science and technological developments to fundamental science such as laser-matter interaction and geology. Despite its interest, its study relies on a fine multiscale description, in between the atomic scale and macroscopic processes, so far only achievable by large-scale atomic simulations. Direct ultrafast real-time monitoring of dynamic fracture (spallation) at the atomic lattice scale with picosecond time resolution was beyond the reach of experimental techniques. We show that the coupling between a high-power optical laser pump pulse and a femtosecond x-ray probe pulse generated by an x-ray free electron laser allows detection of the lattice dynamics in a tantalum foil at an ultrahigh strain rate of ε. ~2 × 108 to 3.5 × 108 s−1. A maximal density drop of 8 to 10%, associated with the onset of spallation at a spall strength of ~17 GPa, was directly measured using x-ray diffraction. The experimental results of density evolution agree well with large-scale atomistic simulations of shock wave propagation and fracture of the sample. Our experimental technique opens a new pathway to the investigation of ultrahigh strain-rate phenomena in materials at the atomic scale, including high-speed crack dynamics and stress-induced solid-solid phase transitions.

Published
2017

14. Detailed characterization of laser-produced astrophysically-relevant jets formed via a poloidal magnetic nozzle

Author

A. A. Soloviev, K. Naughton, Benjamin Khiar, Drew Higginson, R. Riquier, E. D. Filippov, Oliver Portugall, Caterina Riconda, G. Revet, S. A. Pikuz, Tommaso Vinci, S. N. Ryazantsev, I. Yu. Skobelev, D. Khaghani, M. Blecher, H. Pépin, Oswald Willi, Marco Borghesi, J. Béard, K. F. Burdonov, M. V. Starodubtsev, Julien Fuchs, S. N. Chen, Andrea Ciardi, Laboratoire national des champs magnétiques intenses - Toulouse (LNCMI-T), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Laboratoire pour l'utilisation des lasers intenses (LULI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Centre National de la Recherche Scientifique (CNRS), Laboratoire National des Champs Magnétiques Pulsés (LNCMP), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), Queen's University [Belfast] (QUB), Énergie Matériaux Télécommunications - INRS (EMT-INRS), Institut National de la Recherche Scientifique [Québec] (INRS)-Université du Québec à Montréal = University of Québec in Montréal (UQAM), Joint Institute for High Temperatures of the RAS (JIHT), Russian Academy of Sciences [Moscow] (RAS), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Don State Technical University, Institute of Applied Physics (IAP, Nizhny Novgorod), Dipartimento di Fisica 'Giuseppe Occhialini' = Department of Physics 'Giuseppe Occhialini' [Milano-Bicocca], Università degli Studi di Milano-Bicocca = University of Milano-Bicocca (UNIMIB), Institut für Laser und Plasmaphysik, Heinrich Heine Universität Düsseldorf = Heinrich Heine University [Düsseldorf], École normale supérieure - Paris (ENS Paris), Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA), and Università degli Studi di Milano-Bicocca [Milano] (UNIMIB)

Subjects
Astrophysical plasmas, Nuclear and High Energy Physics, Tokamak, Atmospheric-pressure plasma, Outflows, 01 natural sciences, 010305 fluids & plasmas, law.invention, Magnetohydrodynamics, law, Physics::Plasma Physics, 0103 physical sciences, Jets, Magnetic pressure, 010306 general physics, Magnetosphere particle motion, ComputingMilieux_MISCELLANEOUS, Physics, [PHYS]Physics [physics], Jet (fluid), Radiation, Plasma, Magnetic field, [PHYS.COND.CM-S]Physics [physics]/Condensed Matter [cond-mat]/Superconductivity [cond-mat.supr-con], Atomic physics, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Laser-plasma interactions
Abstract

The collimation of astrophysically-relevant plasma ejecta in the form of narrow jets via a poloidal magnetic field is studied experimentally by irradiating a target situated in a 20 T axial magnetic field with a 40 J, 0.6 ns, 0.7 mm diameter, high-power laser. The dynamics of the plasma shaping by the magnetic field are studied over 70 ns and up to 20 mm from the source by diagnosing the electron density, temperature and optical self-emission. These show that the initial expansion of the plasma is highly magnetized, which leads to the formation of a cavity structure when the kinetic plasma pressure compresses the magnetic field, resulting in an oblique shock [A. Ciardi et al., Phys. Rev. Lett. 110, 025002 (2013)]. The resulting poloidal magnetic nozzle collimates the plasma into a narrow jet [B. Albertazzi et al., Science 346, 325 (2014)]. At distances far from the target, the jet is only marginally magnetized and maintains a high aspect ratio due to its high Mach-number (M∼20) and not due to external magnetic pressure. The formation of the jet is evaluated over a range of laser intensities (1012–1013 W/cm2), target materials and orientations of the magnetic field. Plasma cavity formation is observed in all cases and the viability of long-range jet formation is found to be dependent on the orientation of the magnetic field.

Published
2017

15. Ultrafast observation of lattice dynamics in laser-irradiated gold foils

Author

Andrew Krygier, T. A. Pikuz, Osami Sakata, A. Y. Faenov, Tadashi Togashi, Yasuhisa Sano, Emma McBride, R. Kodama, M. Koenig, Hideaki Habara, Norimasa Ozaki, Tomoko Sato, Yasushi Fujimoto, K. Takahashi, Yuhei Umeda, Yoshio Matsumura, Toshimori Sekine, Takuo Okuchi, Yuichi Inubushi, Tetsuo Katayama, Yoshinori Tange, T. Yabuuchi, Yusuke Seto, Tommaso Vinci, M. Harmand, N. J. Hartley, Toshimasa Matsuoka, Guillaume Morard, P. Mabey, Bruno Albertazzi, Satoshi Matsuyama, Kazuto Yamauchi, K. A. Tanaka, Makina Yabashi, and Kohei Miyanishi

Subjects
Diffraction, Materials science, Physics and Astronomy (miscellaneous), X-ray optics, Physics::Optics, 02 engineering and technology, 01 natural sciences, Molecular physics, law.invention, Lattice constant, Optics, law, 0103 physical sciences, 010306 general physics, Laser ablation, Scattering, business.industry, XFEL, 021001 nanoscience & nanotechnology, Laser, Laser-matter interaction, Femtosecond, X-ray crystallography, 0210 nano-technology, business
Abstract

N. J. Hartley, N. Ozaki, T. Matsuoka, B. Albertazzi, A. Faenov, Y. Fujimoto, H. Habara, M. Harmand, Y. Inubushi, T. Katayama, M. Koenig, A. Krygier, P. Mabey, Y. Matsumura, S. Matsuyama, E. E. McBride, K. Miyanishi, G. Morard, T. Okuchi, T. Pikuz, O. Sakata, Y. Sano, T. Sato, T. Sekine, Y. Seto, K. Takahashi, K. A. Tanaka, Y. Tange, T. Togashi, Y. Umeda, T. Vinci, M. Yabashi, T. Yabuuchi, K. Yamauchi, and R. Kodama , "Ultrafast observation of lattice dynamics in laser-irradiated gold foils", Appl. Phys. Lett. 110, 071905 (2017) https://doi.org/10.1063/1.4976541., We have observed the lattice expansion before the onset of compression in an optical-laser-driven target, using diffraction of femtosecond X-ray beams generated by the SPring-8 Angstrom Compact Free-electron Laser. The change in diffraction angle provides a direct measure of the lattice spacing, allowing the density to be calculated with a precision of ±1%. From the known equation of state relations, this allows an estimation of the temperature responsible for the expansion as

Published
2017

16. Laser-ablation and induced nanoparticle synthesis

Author

Dimitri Batani, Davide Bleiner, and Tommaso Vinci

Subjects
Equation of state, Phase transition, Spinodal, Laser ablation, Materials science, business.industry, Nanoparticle, 620 Engineering, Condensed Matter Physics, Laser, Atomic and Molecular Physics, and Optics, Pulse (physics), law.invention, law, Optoelectronics, Physical chemistry, Irradiation, Electrical and Electronic Engineering, business
Abstract

Laser pulses are largely used for processing and analysis of materials and in particular for nano-particle synthesis. This paper addresses fundamentals of the generation of nano-materials following specific thermodynamic paths of the irradiated material. Computer simulations using the hydro code MULTI and the SESAME equation of state have been performed to follow the dynamics of a target initially heated by a short laser pulse over a distance comparable to the metal skin depth.

Published
2013

17. Optimization of interaction conditions for efficient short laser pulse amplification by stimulated Brillouin scattering in the strongly coupled regime

Author

J.-R. Marquès, Stefan Weber, M. Chiaramello, Tommaso Vinci, Julien Fuchs, L. Lancia, Mickael Grech, F. Amiranoff, Caterina Riconda, Laboratoire pour l'utilisation des lasers intenses (LULI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), and Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)

Subjects
7. Clean energy, 01 natural sciences, Spectral line, 010305 fluids & plasmas, law.invention, symbols.namesake, Optics, Brillouin scattering, law, [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph], 0103 physical sciences, 010306 general physics, ComputingMilieux_MISCELLANEOUS, Physics, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], business.industry, Pulse duration, Plasma, Condensed Matter Physics, Laser, Pulse (physics), Brillouin zone, symbols, Atomic physics, business, Raman spectroscopy
Abstract

Plasma amplification of low energy, a short (∼100–500 fs) laser pulse by an energetic long (∼10 ps) pulse via strong coupling Stimulated Brillouin Backscattering is investigated with an extensive analysis of one-dimensional particle-in-cell simulations. Parameters relevant to nowadays experimental conditions are investigated. The obtained seed pulse spectra are analyzed as a function of the interaction conditions such as plasma profile, pulses delay, and seed or pulse duration. The factors affecting the amount of energy transferred are determined, and the competition between Brillouin-based amplification and parasitic Raman backscattering is analyzed, leading to the optimization of the interaction conditions.

Published
2016

18. Probing local and electronic structure in Warm Dense Matter: single pulse synchrotron x-ray absorption spectroscopy on shocked Fe

Author

Jon Headspith, Laurent Videau, Paul Loubeyre, Arnaud Sollier, Alessandra Benuzzi-Mounaix, Florent Occelli, William Helsby, R. Torchio, Olivier Mathon, S. N. Bland, Daniel E. Eakins, Tommaso Vinci, Emilien Lescoute, David J. Chapman, Sakura Pascarelli, European Synchrotron Radiation Facility (ESRF), DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire pour l'utilisation des lasers intenses (LULI), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Daresbury Lab, SERC, Daresbury Lab., Imperial College London, and AWE Plc

Subjects
Materials science, Absorption spectroscopy, PHASE, 02 engineering and technology, Electronic structure, 01 natural sciences, Article, law.invention, PHYSICS, RATIO, law, 0103 physical sciences, 010306 general physics, Absorption (electromagnetic radiation), [PHYS]Physics [physics], X-ray absorption spectroscopy, Science & Technology, Multidisciplinary, Extended X-ray absorption fine structure, IRON, ELASTICITY, INERTIAL CONFINEMENT FUSION, Warm dense matter, 021001 nanoscience & nanotechnology, Synchrotron, Computational physics, Multidisciplinary Sciences, Amplitude, Science & Technology - Other Topics, 0210 nano-technology
Abstract

Understanding Warm Dense Matter (WDM), the state of planetary interiors, is a new frontier in scientific research. There exists very little experimental data probing WDM states at the atomic level to test current models and those performed up to now are limited in quality. Here, we report a proof-of-principle experiment that makes microscopic investigations of materials under dynamic compression easily accessible to users and with data quality close to that achievable at ambient. Using a single 100 ps synchrotron x-ray pulse, we have measured, by K-edge absorption spectroscopy, ns-lived equilibrium states of WDM Fe. Structural and electronic changes in Fe are clearly observed for the first time at such extreme conditions. The amplitude of the EXAFS oscillations persists up to 500 GPa and 17000 K, suggesting an enduring local order. Moreover, a discrepancy exists with respect to theoretical calculations in the value of the energy shift of the absorption onset and so this comparison should help to refine the approximations used in models.

Published
2016

19. Dissociation along the principal Hugoniot of the Laser Mégajoule ablator material

Author

R. Bolis, V. Recoules, Thomas Plisson, G. Huser, G. Salin, E. Brambrink, P. Colin-Lalu, and Tommaso Vinci

Subjects
Glow discharge, Materials science, Warm dense matter, Laser, 01 natural sciences, Dissociation (chemistry), 010305 fluids & plasmas, ABINIT, law.invention, law, 0103 physical sciences, Atomic physics, 010306 general physics, National Ignition Facility, Inertial confinement fusion, Laser Mégajoule
Abstract

Glow discharge polymer hydrocarbon (GDP-CH) is used as the ablator material in inertial confinement fusion (ICF) capsules for the Laser Megajoule and National Ignition Facility. Due to its fabrication process, GDP-CH chemical composition and structure differ from commercially available plastics and detailed knowledge of its properties in the warm dense matter regime is needed to achieve accurate design of ICF capsules. First-principles ab initio simulations of the GDP-CH principal Hugoniot up to 8 Mbar were performed using the quantum molecular dynamics (QMD) code abinit and showed that atomic bond dissociation has an effect on the compressibility. Results from these simulations are used to parametrize a quantum semiempirical model in order to generate a tabulated equation of state that includes dissociation. Hugoniot measurements obtained from an experiment conducted at the LULI2000 laser facility confirm QMD simulations as well as EOS modeling. We conclude by showing the EOS model influence on shock timing in a hydrodynamic simulation.

Published
2016

20. Simulating earth core using high energy lasers

Author

A. Nourou, Tommaso Vinci, M. Koenig, François Guyot, Alessandra Ravasio, Alessandra Benuzzi-Mounaix, F. Occelli, Huigang Wei, Stephane Mazevet, E. Lescoute, Erik Brambrink, Guillaume Morard, T. de Rességuier, Laboratoire pour l'utilisation des lasers intenses (LULI), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut de minéralogie et de physique des milieux condensés (IMPMC), Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS), Institut Pprime (PPRIME), Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-IPG PARIS-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), and ENSMA-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers

Subjects
Nuclear and High Energy Physics, Phase transition, Equation of state, Materials science, Laser plasmas, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, chemistry.chemical_element, 02 engineering and technology, 01 natural sciences, law.invention, Aluminium, law, Phase (matter), 0103 physical sciences, 010306 general physics, Shocks, Radiation, Isentropic process, Inner core, Time evolution, Mechanics, 021001 nanoscience & nanotechnology, Laser, Geophysics, chemistry, Atomic physics, 0210 nano-technology
Abstract

International audience; The melting curve and equation of state of iron and iron alloys at the inner core boundary (330 GPa, about 5000 K) are still unknown. This severally limits current modelling of earth constitution and dynamics. In this paper, recent numerical and experimental studies performed using laser generated isentropic ramp compression on iron and aluminium samples are presented. On the experimental side, direct laser ramp compression was achieved on iron. Time-resolved measurements were compared to hydrodynamic computations accounting for the polymorphic phase transformations. Before studying iron that presents a solid-solid phase transition along the isentropic path, we studied the time evolution of the atomic structure of aluminium using molecular dynamics simulations at the same length and time scales as the experiment. Like many metals, aluminium presents an elasto-plastic phase transition and we studied, using this microscopic approach, the effect of plasticity on the backward integration technique used to extract equation of state information from the experimental VISAR signal.

Published
2010

21. Probing iron at Super-Earth core conditions

Author

Norimasa Ozaki, Stephane Mazevet, D. Raffestin, Guillaume Morard, N. Amadou, Michel Koenig, T. de Rességuier, Ryosuke Kodama, Tommaso Vinci, Erik Brambrink, T. R. Boehly, Olivier Henry, François Guyot, Alessandra Benuzzi-Mounaix, Stephanie Brygoo, Kohei Miyanishi, G. Huser, Laboratoire pour l'utilisation des lasers intenses (LULI), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Univers et Théories (LUTH (UMR_8102)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7), CEA, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Muséum national d'Histoire naturelle (MNHN)-Institut de recherche pour le développement [IRD] : UR206-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS), Institut Pprime (PPRIME), Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS), Graduate School of Engineering [Suita, Osaka], Osaka University [Osaka], Graduate School of Engineering, Osaka University, Graduate School of Engineering, Centre d'élaboration de matériaux et d'études structurales (CEMES), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie de Toulouse (ICT-FR 2599), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut de Chimie du CNRS (INC)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA), Centre d'études scientifiques et techniques d'Aquitaine (CESTA), Laboratory for lasers energetics - LLE (New-York, USA), University of Rochester [USA], Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Centre National de la Recherche Scientifique (CNRS), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut de Chimie de Toulouse (ICT), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Saclay-Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de recherche pour le développement [IRD] : UR206-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC), Université de Poitiers-Centre National de la Recherche Scientifique (CNRS)-ENSMA, Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut de Chimie de Toulouse (ICT-FR 2599), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), and Graduate School of Engineering [Osaka]

Subjects
Physics, [PHYS]Physics [physics], Super-Earth, Condensed Matter Physics, Laser, 7. Clean energy, 01 natural sciences, law.invention, Core (optical fiber), 13. Climate action, law, 0103 physical sciences, Irradiation, Atomic physics, 010306 general physics, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], 010303 astronomy & astrophysics, ComputingMilieux_MISCELLANEOUS
Abstract

In this paper, we report on the quasi-isentropic compression of an iron sample using ramp shaped laser irradiation. This technique allows us to quasi-isentropically compress iron up to 700 GPa and 8500 K. To our knowledge, these data are the highest pressures reached on iron in off-Hugoniot conditions and the closest to the thermodynamic states thought to exist in Earth-like planetary cores. The experiment was performed on the Ligne d'Integration laser facility at CESTA, Bordeaux, France.

Published
2015

22. X-ray absorption spectroscopy of iron at multimegabar pressures in laser shock experiments

Author

C. Fourment, Norimasa Ozaki, Jérôme Gaudin, Marion Harmand, Bob Nagler, Ryosuke Kodama, Motoaki Nakatsutsumi, Fabien Dorchies, Guillaume Morard, A. Denoeud, Yiping Feng, J. Bouchet, Stephane Mazevet, Kohei Miyanishi, Diling Zhu, R. Musella, Sven Toleikis, Tommaso Vinci, M. Koenig, Alessandra Benuzzi-Mounaix, Alessandra Ravasio, François Guyot, Ulf Zastrau, H. J. Lee, V. Recoules, Eric Galtier, Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS), Laboratoire pour l'utilisation des lasers intenses (LULI), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire Univers et Théories (LUTH (UMR_8102)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7), Centre d'Etudes Lasers Intenses et Applications (CELIA), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Bordeaux (UB), SLAC National Accelerator Laboratory (SLAC), Stanford University, Institute of Laser Engineering, Osaka University, Osaka, Japan, affiliation inconnue, European XFEL GmbH (XFEL), European XFEL GmbH, Photone Sciences, Deutsches Elektronen-Synchrotron (DESY), Friedrich-Schiller-Universität = Friedrich Schiller University Jena [Jena, Germany], ANR-12-PDOC-0011,IronFEL,Le fer et ses alliages sous conditions extrèmes et sondés par diagnostiques X sur les installations FEL et lasers intenses(2012), ANR-12-BS04-0015,PlanetLab,Propriètés des planètes et des exoplanètes en laboratoire(2012), Institut de recherche pour le développement [IRD] : UR206-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC), Université Paris-Saclay-Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), SLAC National Accelerator Laboratory, Friedrich-Schiller-Universität Jena, Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), and Université de Bordeaux (UB)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
X-ray absorption spectroscopy, Materials science, Free-electron laser, Diamond, [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph], engineering.material, Condensed Matter Physics, Laser, 01 natural sciences, Molecular physics, XANES, Spectral line, 010305 fluids & plasmas, Electronic, Optical and Magnetic Materials, law.invention, law, [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph], 0103 physical sciences, engineering, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], ddc:530, 010306 general physics, Spectroscopy, Absorption (electromagnetic radiation)
Abstract

International audience; Taking advantage of the new opportunities provided by x-ray free electron laser (FEL) sources when coupled to a long laser pulse as available at the Linear Coherent Light Source (LCLS), we have performed x-ray absorption near-edge spectroscopy (XANES) of laser shock compressed iron up to 420 GPa (±50) and 10 800 K (±1390). Visible diagnostics coupled with hydrodynamic simulations were used to infer the thermodynamical conditions along the Hugoniot and the release adiabat. A modification of the pre-edge feature at 7.12 keV in the XANES spectra is observed above pressures of 260 GPa along the Hugoniot. Comparing with ab initio calculations and with previous laser-heated diamond cell data, we propose that such changes in the XANES pre-edge could be a signature of molten iron. This interpretation then suggests that iron is molten at pressures and temperatures higher than 260 GPa (±29) and 5680 K (±700) along the principal Fe Hugoniot.

Published
2015

23. Laser-driven shock waves for the study of extreme matter states

Author

Alessandra Ravasio, Angelo Schiavi, T. R. Boehly, T. A. Pikuz, Tommaso Vinci, Dimitri Batani, C. A. Cecchetti, Serge Bouquet, Stefano Atzeni, G. Huser, Marco Borghesi, S. Le Pape, P. K. Patel, M. M. Notley, Norimasa Ozaki, Yefim Aglitskiy, Damien Hicks, E. A. Henry, H. S. Park, R. Dezulian, A. J. Mackinnon, M. Rabec Le Gloahec, M. Koenig, C. Michaut, R. Clark, A. Y. Faenov, Alessandra Benuzzi-Mounaix, S Bandyopadhyay, K. A. Tanaka, Berenice Loupias, Laboratoire pour l'utilisation des lasers intenses (LULI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire Univers et Théories (LUTH (UMR_8102)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Lawrence Livermore National Laboratory (LLNL), Laboratory for Laser Energetics, Queen's University, Central Laser Facility Rutherford, Appleton Laboratory, Chilton, Oxfordshire, Dipartimento di Energetica, Università di Roma La Sapienza and CNISM, Science Applications International Corporation, McLean, Multicharged Ions Spectra Data Center, VNIIFRTI, Università degli Studi di Milano-Bicocca = University of Milano-Bicocca (UNIMIB), and Institute of Laser Engineering, Osaka University

Subjects
Shock wave, Physics, Measure (physics), Condensed Matter Physics, Laser, Shock (mechanics), law.invention, Computational physics, Nuclear physics, Planetary science, Nuclear Energy and Engineering, law, Energy density, State of matter, Radiative transfer, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience; During the last ten years, the ability of high power lasers to generate high energy density shocks has made them a reliable tool to study extreme states of matter. These states of matter are relevant in many important physics areas such as astrophysics, planetology and ICF physics. Here, we present some representative studies performed by using a driven laser shock: melting of iron at pressures relevant for geophysics, developments of new techniques to measure the density of highly compressed matter and a study of a radiative shock.

Published
2006

24. Laser-driven flyer impact experiments at the LULI 2000 laser facility

Author

Alessandra Ravasio, Keiji Nagai, Norimasa Ozaki, M. Koenig, Alessandra Benuzzi-Mounaix, M. Esposito, G. Huser, Tommaso Vinci, K. A. Tanaka, S. Lepape, Masatake Yoshida, Wigen Nazarov, and E. Henry

Subjects
Shock wave, Fused quartz, Materials science, business.industry, General Physics and Astronomy, Laser, law.invention, Transverse plane, Optics, law, Shadowgraph, business, Electrical conductor, FOIL method
Abstract

New laser-driven flyer impact experiments have been performed at the LULI laboratory. In these experiments, three types of targets (single Al flyer, multi-layered, and foam-buffered high-Z metal) were used. Impacted conditions in fused quartz were measured with rear-side (two VISARs and SOP) and transverse diagnostics (shadowgraph). In the foam-buffered target, Ta foil was accelerated up to a velocity of 55 km/s. Shock wave accelerated in fused quartz by an Al flyer impact was generated, and the shock wave passing a distinct boundary to a conductive state was directly observed. This method is a way to create unique conditions within the EOS diagram of material.

Published
2006

25. Novel diagnostic of low-Z shock compressed material

Author

T. R. Boehly, Marco Borghesi, Tommaso Vinci, Michel Koenig, Emanuelle Martinolli, Sebastien Le Pape, P. K. Patel, Damien Hicks, Sataybrata Kar, Andy Mackinnon, Alessandra Bennuzzi-Mounaix, and Lorenzo Romagnani

Subjects
Aluminum foil, Nuclear and High Energy Physics, Radiation, Materials science, business.industry, Radiography, Proton radiography, Laser, Compression (physics), law.invention, Pulse (physics), Shock (mechanics), Optics, law, Physics::Accelerator Physics, business
Abstract

An experiment was performed using high-energy protons, generated by an intense short laser pulse, to try to characterize in situ, the spatial and temporal evolution of a laser-driven shock propagating through a low-Z material. Radiography of the shock propagating through the low-Z transparent material could lead to density determination under compression. A first test of a proton radiography of the rear-side released state of a shocked aluminum foil has also been tried.

Published
2006

26. High pressures generated by laser driven shocks: applications to planetary physics

Author

E. Martinolli, D. K. Bradley, Damien Hicks, T. R. Boehly, M. M. Notley, M. Tomasini, Gilbert Collins, R. C. Cauble, Dimitri Batani, S. Lepape, Bernard Faral, Tommaso Vinci, Jon Eggert, Kanani K. M. Lee, Oswald Willi, P. Loubeyre, A. J. Mackinnon, Peter M. Celliers, M. Koenig, Marco Borghesi, D. Neely, John Pasley, Alessandra Benuzzi-Mounaix, E. Henry, Lorenzo Romagnani, B. Telaro, Colin N. Danson, Todd H. Hall, G. Huser, L. DaSilva, and P. K. Patel

Subjects
Physics, Nuclear and High Energy Physics, Equation of state, Inner core, Context (language use), Plasma, Warm dense matter, Condensed Matter Physics, Laser, law.invention, Computational physics, Planet, law, Boundary value problem, Atomic physics
Abstract

High power lasers are a tool that can be used to determine important parameters in the context of Warm Dense Matter, i.e. at the convergence of low-temperature plasma physics and finite-temperature condensed matter physics. Recent results concerning planet inner core materials such as water and iron are presented. We determined the equation of state, temperature and index of refraction of water for pressures up to 7 Mbar. The release state of iron in a LiF window allowed us to investigate the melting temperature near the inner core boundary conditions. Finally, the first application of proton radiography to the study of shocked material is also discussed.

Published
2004

27. Interface velocity of laser shocked Fe/LiF targets

Author

Tommaso Vinci, E. Henry, B. Telaro, M. Tomasini, Bernard Faral, G. Huser, D. Batani, M. Koenig, and Alessandra Benuzzi-Mounaix

Subjects
Shock wave, Physics, Plasma heating, business.industry, Physics::Optics, Lithium fluoride, Halide, Condensed Matter Physics, Laser, law.invention, chemistry.chemical_compound, Optics, chemistry, Transition metal, law, Plasma diagnostics, Physics::Atomic Physics, Atomic physics, business, Refractive index
Abstract

The interface velocity of iron partially releasing into a lithium fluoride (LiF) window has been measured using VISAR technique. Corrections to the fringe-per-velocity relationship are presented. A good agreement with hydrodynamic simulations is found at laser intensities

Published
2004

28. Generation of high pressure shocks relevant to the shock-ignition intensity regime

Author

Giulia Folpini, Gabriele Cristoforetti, Yong-Joo Rhee, Michal Smid, Xavier Ribeyre, Andriy Velyhan, Y. Maheut, Dimitri Batani, Petra Koester, Fabrizio Consoli, L. Giuffrida, J. Badziak, Luca Labate, R. Dudzak, Oldrich Renner, Tommaso Vinci, Luca Antonelli, Maria Richetta, T O'Dell, L. A. Gizzi, T. Levato, G. Malka, E. Krousky, Stefano Atzeni, T. Pisarczyk, Tomasz Chodukowski, Ph. Nicolaï, Jiri Skala, M. Krus, C. Spindloe, F. Baffigi, M. Sawicka, Alberto Marocchino, R. De Angelis, Daniele Margarone, Jiri Ullschmied, Jaroslav Nejdl, Zofia Kalinowska, Marcin Rosinski, Angelo Schiavi, Consoli, F., and De Angelis, R.

Subjects
Condensed matter physics, Plasmas, Energy transport, High pressure, Laser-plasma interactions, Low-intensity, Preformed plasma, Shock ignitions, Beam plasma interactions, laser-plasma interactions, Laser-driven shock waves, laser-plasma interactions, shock ignition, inertial confinement fusion, law.invention, Physics::Plasma Physics, law, Inertial confinement fusion, Astrophysics::Galaxy Astrophysics, Physics, shock ignition, Settore FIS/01 - Fisica Sperimentale, inertial confinement fusion, Plasma, Mechanics, Nova (laser), Condensed Matter Physics, Laser, Shock (mechanics), Ignition system, Laser-driven shock waves, Atomic physics, Intensity (heat transfer), Beam (structure)
Abstract

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 the "shock ignition" approach to Inertial Confinement Fusion. A first beam at low intensity was used to create an extended preformed plasma, and a second one to create a strong shock. Pressures up to 90 Megabars were inferred. Our results show the importance of the details of energy transport in the overdense region. © 2014 AIP Publishing LLC.

Published
2014

29. Progress in warm dense matter study with applications to planetology

Author

F. Festa, Tommaso Vinci, Guillaume Morard, A. Denoeud, Jérôme Gaudin, Marion Harmand, N. Amadou, Sebastien Le Pape, Stephanie Brygoo, Michel Koenig, Olivier Henry, Raymond F. Smith, Alessandra Ravasio, Fabien Dorchies, Didier Raffestin, Olivier Peyrusse, Erik Brambrink, Norimasa Ozaki, François Guyot, R. Musella, Johan Bouchet, V. Recoules, G. Huser, Thibaut de Resseguier, K. Myanishi, Anna Lévy, Pierre Marie Leguay, Stephane Mazevet, Alessandra Benuzzi-Mounaix, Laboratoire pour l'utilisation des lasers intenses (LULI), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Univers et Théories (LUTH (UMR_8102)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7), DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Centre National de la Recherche Scientifique (CNRS), Institut Pprime (PPRIME), ENSMA-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers, Graduate School of Engineering, Osaka University, Osaka University [Osaka], Centre d'Etudes Lasers Intenses et Applications (CELIA), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Bordeaux (UB), Centre d'études scientifiques et techniques d'Aquitaine (CESTA), Lawrence Livermore National Laboratory (LLNL), Université Paris-Saclay-Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de recherche pour le développement [IRD] : UR206-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC), Université de Poitiers-Centre National de la Recherche Scientifique (CNRS)-ENSMA, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS), and Université de Bordeaux (UB)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, [PHYS]Physics [physics], Phase transition, Absorption spectroscopy, business.industry, ab initio calculations, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, Warm dense matter, Condensed Matter Physics, Laser, Atomic and Molecular Physics, and Optics, Computational physics, law.invention, Optics, Planetary science, 13. Climate action, law, Density functional theory, strongly coupled plasma, Spectroscopy, business, Absorption (electromagnetic radiation), [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Mathematical Physics, laser compression
Abstract

International audience; We present an overview of some recent theoretical and experimental results obtained on the properties of iron and silica at conditions encountered in planetary interiors. The first part is concerned with the development of x-ray absorption near edge spectroscopy in dynamical experiments using high-energy lasers as a tool to investigate phase transitions and structural changes at extreme pressure-temperature conditions for these two key constituents. The second part focuses on the development of a quasi-isentropic compression technique to achieve the pressure-temperature conditions anticipated in planetary interiors (3-10 Mbar, 5000-8000 K). The experiments were performed using the LULI, LLNL and LIL high-energy lasers' facilities. The experimental results are analyzed using first-principle simulations based on density functional theory.

Published
2014

30. Laser-driven shocks in precompressed water samples

Author

Stephanie Brygoo, M. Koenig, Alessandra Ravasio, E. Henry, Alessandra Benuzzi-Mounaix, Tommaso Vinci, and P. Loubeyre

Subjects
Shock wave, Streak camera, Wave propagation, business.industry, Chemistry, General Physics and Astronomy, Diamond, engineering.material, Laser, Diamond anvil cell, Shock (mechanics), law.invention, Optics, law, engineering, business, Quartz
Abstract

We report experimental measurements of the equation of state (EOS) of water with laser-driven shock waves. The water samples are precompressed using diamond anvil cells (DAC) to initial pressures ranging from 1 to 6 kbar. The shock is formed into a flat, 100 μm thick diamond and transmitted into a 25 μm thick quartz plate, which we use as a reference material for impedence mismatch. Two VISAR interferometric diagnostics allow the measurement of the shock velocity into both quartz and water. The light emitted by the sample is collected in the wavelength range 600 ± 12.5 nm, and imaged onto a calibrated streak camera, which measures the equivalent black body temperature of the shocked sample. A few points were obtained, five of which show reliable measurements of pressure, density and temperature of water. The results agree with the Sesame tables [7] when taking into account experimental uncertainties.

Published
2006

31. Radiative shocks: New results for laboratory astrophysics

Author

Stefano Atzeni, Alessandra Ravasio, Angelo Schiavi, C. Michaut, Tommaso Vinci, M. Koenig, S. Bouquet, Norimasa Ozaki, Alessandra Benuzzi-Mounaix, Olivier Peyrusse, L. Boireau, Laboratoire pour l'utilisation des lasers intenses (LULI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Univers et Théories (LUTH (UMR_8102)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Dipartimento di Energetica, Università di Roma La Sapienza and CNISM, Centre d'Etudes Lasers Intenses et Applications (CELIA), and Université de Bordeaux (UB)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Electron density, Streak camera, business.industry, Astrophysics::High Energy Astrophysical Phenomena, General Physics and Astronomy, chemistry.chemical_element, Astrophysics, Laser, Supercritical fluid, law.invention, Radial velocity, Optics, Xenon, chemistry, law, Brightness temperature, Radiative transfer, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], business
Abstract

International audience; In the framework of the Laboratory Astrophysics, we present new radiative shocks experiments performed using the LULI2000 facility. A strong shock is driven in a multi-layered solid target (CH-Ti-CH) which accelerates into a gas cell (˜ 60 km/s) filled with Xenon at low pressure (0.1 - 0.3 bar) and produces a radiative supercritical shock [4, 8]. A low power laser beam (8 ns - 532 nm) probes the Xenon gas in the transverse direction and is injected into a VISAR and on two optical framing cameras (GOI). These diagnostics allow to determine electron density variation, to measure both precursor and shock velocities along the shock propagation axis [3, 5] as well as the 2D shape of the shock. On rear side, the light emitted from the shocked Xenon is imaged onto the slit of a streak camera. An absolute calibration of the optical system allows to determine the brightness temperature [8]. Data were obtained for different laser intensities and gas pressures. Two VISARs on rear side allowed an accurate measurement of the shock conditions in the pusher before the breakout in the Xenon. Comparison between 1D (MULTI) and 2D (DUED [1, 2]) radiative hydrodynamic codes and measured quantities (shock velocity, shape, radial expansion, and temperature as well as precursor velocity and precursor electron density) are presented.

Published
2006

32. A new target design for laser shock-compression studies of carbon reflectivity in the megabar regime

Author

Yoichiro Hironaka, Abutrab Aliverdiev, Tommaso Vinci, Paolo Piseri, Toshihiko Kadono, S Paleari, A. Shiroshita, Dimitri Batani, Alfonso Mangione, Keisuke Shigemori, Stefano Bellucci, Roberto Benocci, Paleari, S, Batani, D, Vinci, T, Benocci, R, Shigemori, K, Hironaka, Y, Kadono, T, Shiroshita, A, Piseri, P, Bellucci, S, Mangione, A, and Aliverdiev, A

Subjects
Materials science, Plasma Physics, business.industry, Diamond, chemistry.chemical_element, Plasma, engineering.material, Compression (physics), Laser, Atomic and Molecular Physics, and Optics, law.invention, Shock (mechanics), Optics, chemistry, law, engineering, Graphite, Atomic physics, business, Carbon, Phase diagram
Abstract

A new design for targets employed in laser induced shock-compression experiments is presented. Numerical simulations to optimize target parameters and to clarify shock dynamics are realized. The experiments proved the new scheme is reliable and appropriate for reflectivity measurements of thermodynamical states lying out of the standard graphite or diamond Hugoniot: the final state reached in compression can be varied tuning the carbon layer characteristics (initial density and thickness) and the laser intensity, with the possibility to determine the reflectivity of carbon and the position on the phase diagram. An increase of reflectivity in carbon has been observed at 260 GPa and 14 000 K while no increase in reflectivity is found at 200 GPa and 20 000 K.

Published
2013

33. Astrophysics of Magnetically Collimated Jets Generated from Laser-Produced Plasmas

Author

Tommaso Vinci, H. Pépin, Olivier Portugall, Julien Fuchs, Andrea Ciardi, B. Albertazzi, Caterina Riconda, Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Centre National de la Recherche Scientifique (CNRS), DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire pour l'utilisation des lasers intenses (LULI), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire national des champs magnétiques intenses - Toulouse (LNCMI-T), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), École normale supérieure - Paris (ENS-PSL), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), and Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])

Subjects
Astrophysics::High Energy Astrophysical Phenomena, General Physics and Astronomy, FOS: Physical sciences, Astrophysics, 7. Clean energy, 01 natural sciences, Collimated light, 010305 fluids & plasmas, law.invention, law, 0103 physical sciences, 010306 general physics, Solar and Stellar Astrophysics (astro-ph.SR), ComputingMilieux_MISCELLANEOUS, Envelope (waves), Physics, Jet (fluid), Plasma, Laser, Physics - Plasma Physics, Magnetic field, Shock (mechanics), Plasma Physics (physics.plasm-ph), [PHYS.COND.CM-S]Physics [physics]/Condensed Matter [cond-mat]/Superconductivity [cond-mat.supr-con], Astrophysics - Solar and Stellar Astrophysics, Magnetohydrodynamics, Atomic physics
Abstract

The generation of astrophysically relevant jets, from magnetically collimated, laser-produced plasmas, is investigated through three-dimensional, magneto-hydrodynamic simulations. We show that for laser intensities I ~ 10^12 - 10^14 W/cm^2, a magnetic field in excess of ~ 0.1 MG, can collimate the plasma plume into a prolate cavity bounded by a shock envelope with a standing conical shock at its tip, which re-collimates the flow into a super magneto-sonic jet beam. This mechanism is equivalent to astrophysical models of hydrodynamic inertial collimation, where an isotropic wind is focused into a jet by a confining circumstellar torus-like envelope. The results suggest an alternative mechanism for a large-scale magnetic field to produce jets from wide-angle winds. (abridged version), Comment: Accepted for publication in Physical Review Letters. 5 pages, 4 figures

Published
2013

34. Direct laser-driven ramp compression studies of iron: A first step toward the reproduction of planetary core conditions

Author

François Guyot, T. R. Boehly, Olivier Henry, Ryosuke Kodama, Norimasa Ozaki, N. Amadou, Tommaso Vinci, Alessandra Benuzzi-Mounaix, Erik Brambrink, M. Koenig, G. Huser, Guillaume Morard, D. Raffestin, T. de Rességuier, Stephane Mazevet, K. Myanishi, Laboratoire pour l'utilisation des lasers intenses (LULI), Université Paris-Saclay-Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), CEA, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut de minéralogie et de physique des milieux condensés (IMPMC), Université Pierre et Marie Curie - Paris 6 (UPMC)-IPG PARIS-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Univers et Théories (LUTH (UMR_8102)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Institut de recherche pour le développement [IRD] : UR206-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut Pprime (PPRIME), Université de Poitiers-Centre National de la Recherche Scientifique (CNRS)-ENSMA, Graduate School of Engineering, Osaka University, Graduate School of Engineering, Laboratory for Laser Energetics, Centre d'études scientifiques et techniques d'Aquitaine (CESTA), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS), ENSMA-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers, Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Centre National de la Recherche Scientifique (CNRS), and Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear and High Energy Physics, High energy, Phase transition, Materials science, Iron, Thermodynamics, Laser, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, 02 engineering and technology, 01 natural sciences, law.invention, law, 0103 physical sciences, Isentropic compression, 010306 general physics, Shock compression, Radiation, Planetary core, Mechanics, Melting line, 021001 nanoscience & nanotechnology, Compression (physics), Shock (mechanics), Planet interior, 0210 nano-technology
Abstract

International audience; The study of iron under quasi-isentropic compression using high energy lasers, might allow to understand its thermodynamical properties, in particular its melting line in conditions of pressure and temperature relevant to Earth-like planetary cores (330e1500 GPa, 5000e8000 K). However, the iron alphaepsilon solidesolid phase transition at 13 GPa favors shock formation during the quasi-isentropic compression process which can depart from the appropriate thermodynamical path. Understanding this shock formation mechanism is a key issue for being able to reproduce Earth-like planetary core conditions in the laboratory by ramp compression. In this article, we will present recent results of direct laser-driven quasi-isentropic compression experiments on iron samples obtained on the LULI 2000 and LIL laser facilities

Published
2013

35. Advances in the investigation of shock-induced reflectivity of porous carbon

Author

Roberto Benocci, Dimitri Batani, Toshihiko Kadono, Yoichiro Hironaka, A. Shiroshita, Keisuke Shigemori, Tommaso Vinci, S Paleari, Batani, D, Paleari, S, Vinci, T, Benocci, R, Shigemori, K, Hironaka, Y, Kadono, T, and Shiroshita, A

Subjects
Shock wave, Materials science, Atomic and Molecular Physics, and Optic, chemistry.chemical_element, Condensed Matter Physic, engineering.material, Reflectivity, Molecular physics, law.invention, Optics, law, Position (vector), Graphite, Electrical and Electronic Engineering, Pyrometer, Laser induced shock-wave, Plane (geometry), business.industry, Diamond, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Shock (mechanics), Porous carbon, chemistry, engineering, business, Carbon
Abstract

We studied the behavior of porous carbon compressed by laser-generated shock waves. In particular, we developed a new design for targets, optimized for the investigation of carbon reflectivity at hundred-GPa pressures and eV/k temperatures. Specially designed “two-layer-two materials” targets, comprising porous carbon on transparent substrates, allowed the probing of carbon reflectivity and a quite accurate determination of the position in the P, T plane. This was achieved by the simultaneous measurement of shock breakout times, sample temperature (by optical pyrometry) and uid velocity. The experiments proved the new scheme is reliable and appropriate for reflectivity measurements of thermodynamical states lying out of the standard graphite or diamond hugoniot. An increase of reflectivity in carbon has been observed at 260 GPa and 14,000 K while no increase in reflectivity is found at 200 GPa and 20,000 K. We also discuss the role of numerical simulations in the optimization of target parameters and in clarifying shock dynamics.

Published
2013

36. Production of large volume, strongly magnetized laser-produced plasmas by use of pulsed external magnetic fields

Author

E. Veuillot, Olivier Portugall, Sophia Chen, S. Dittrich, Julien Fuchs, S. Nitsche, H. Pépin, Thomas E. Cowan, D. Da Silva, J. Béard, J. Albrecht, J. Billette, Thomas Herrmannsdörfer, S. Simond, Florian Kroll, Motoaki Nakatsutsumi, Tommaso Vinci, B. Hirardin, L. Romagnagni, Andrea Ciardi, Hans-Peter Schlenvoigt, T. Burris-Mog, Bruno Albertazzi, Caterina Riconda, Laboratoire National des Champs Magnétiques Pulsés (LNCMP), Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA), Laboratoire national des champs magnétiques intenses - Toulouse (LNCMI-T), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Centre National de la Recherche Scientifique (CNRS), DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire pour l'utilisation des lasers intenses (LULI), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Centre Interdisciplinaire de Nanoscience de Marseille (CINaM), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Physics Department, MS-220 (UNR), University of Nevada [Reno], Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), and École normale supérieure - Paris (ENS-PSL)

Subjects
Physics, Waves in plasmas, Plasma, Laser, 7. Clean energy, 01 natural sciences, Collimated light, 010305 fluids & plasmas, law.invention, Magnetic field, [PHYS.COND.CM-S]Physics [physics]/Condensed Matter [cond-mat]/Superconductivity [cond-mat.supr-con], Coupling (physics), law, Electromagnetic coil, 0103 physical sciences, Atomic physics, 010306 general physics, Instrumentation, Inertial confinement fusion
Abstract

International audience; The production of strongly magnetized laser plasmas, of interest for laboratory astrophysics and inertial confinement fusion studies, is presented. This is achieved by coupling a 16 kV pulse-power system. This is achieved by coupling a 16 kV pulse-power system, which generates a magnetic field by means of a split coil, with the ELFIE laser facility at Ecole Polytechnique. In order to influence the plasma dynamics in a significant manner, the system can generate, repetitively and without debris, high amplitude magnetic fields (40 T) in a manner compatible with a high-energy laser environment. A description of the system and preliminary results demonstrating the possibility to magnetically collimate plasma jets are given.

Published
2013

37. X-ray emission spectroscopy of well-characterised non-LTE plasmas

Author

L Vassura, P. Audebert, V. Silvert, S. Jacquemot, S. Bastiani-Ceccotti, Tommaso Vinci, Fabien Dorchies, A.-C. Bourgaux, V. Dervieux, P. M. Leguay, C. Bowen, P. Renaudin, Hyun-Kyung Chung, Jean-Raphael Marques, Laboratoire pour l'utilisation des lasers intenses (LULI), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Lasers Intenses et Applications (CELIA), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Bordeaux (UB), Énergie Matériaux Télécommunications - INRS (EMT-INRS), Institut National de la Recherche Scientifique [Québec] (INRS)-Université du Québec à Montréal = University of Québec in Montréal (UQAM), Groupe d'Etude de la Matière Condensée (GEMAC), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS), DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Université de Bordeaux (UB)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS), International Atomic Energy Agency [Vienna] (IAEA), and Dorchies, Fabien

Subjects
[PHYS]Physics [physics], History, 010504 meteorology & atmospheric sciences, Thomson scattering, Chemistry, Scattering, Astrophysics::High Energy Astrophysical Phenomena, Plasma, Inelastic scattering, 01 natural sciences, Spectral line, [PHYS] Physics [physics], Computer Science Applications, Education, law.invention, [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph], law, 0103 physical sciences, Emission spectrum, Atomic physics, 010306 general physics, Spectroscopy, ComputingMilieux_MISCELLANEOUS, 0105 earth and related environmental sciences, Pyrometer
Abstract

This paper will present an experimental platform developed on LULI2000 to measure x-ray emission of non-LTE plasmas in well-defined hydrodynamic conditions thanks to implementation of a whole set of diagnostics, including time-resolved electronic and ionic Thomson scattering and self-optical pyrometry. K-, L- and M-shell spectra will be presented and the methodology, that has been developed to analyze them, discussed.

Published
2016

38. Time-resolved spectroscopic observations of shockinduced silicate ionization

Author

A. Shiroshita, Seiji Sugita, Kosuke Kurosawa, Taiga Hamura, S. Fujioka, Keisuke Shigemori, Shogo Tachibana, Sohsuke Ohno, Tommaso Vinci, Tatsuhiro Sakaiya, Yuichiro Cho, Norimasa Ozaki, Tomokazu Sano, Toshiharu Kadono, T. Matsui, Ryosuke Kodama, and Yoichiro Hironaka

Subjects
inorganic chemicals, Chemistry, Isochoric process, Mineralogy, Forsterite, engineering.material, Laser, complex mixtures, Molecular physics, Silicate, law.invention, Shock (mechanics), chemistry.chemical_compound, law, Ionization, Atom, engineering, Quartz
Abstract

We conducted time-resolved spectroscopic observations of shock-heated quartz and forsterite using a high-power laser. The results revealed that ionization occur easily under shockinduced warm dense conditions. We compare the obtained temperatures on the Hugoniot with a few theories. The comparison suggests that the contribution of shock-induced ionization to the isochoric specific heat during shock compression is ~1 kb/atom for quartz and forsterite. Shock-induced ionization and subsequent electron recombination leads to a larger amount of vapor and may lead to dynamical and chemical evolution of silicate vapor clouds different from our current understandings.

Published
2012

39. LASER-DRIVEN QUASI-ISENTROPIC COMPRESSION EXPERIMENTS AND NUMERICAL STUDIES OF THE IRON ALPHA-EPSILON TRANSITION IN THE CONTEXT OF PLANETOLOGY

Author

Erik Brambrink, N. Amadou, Thibaut de Resseguier, Kohei Miyanishi, Alessandra Benuzzi-Mounaix, Stephane Mazevet, Tommaso Vinci, François Guyot, Guillaume Morard, M. Koenig, Norimasa Ozaki, Laboratoire pour l'utilisation des lasers intenses (LULI), Université Paris-Saclay-Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Institut Pprime (PPRIME), Université de Poitiers-Centre National de la Recherche Scientifique (CNRS)-ENSMA, Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Institut de recherche pour le développement [IRD] : UR206-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC), Graduate School of Engineering, Laboratoire Univers et Théories (LUTH (UMR_8102)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS), Graduate School of Engineering [Osaka], Osaka University [Osaka], Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Centre National de la Recherche Scientifique (CNRS), Graduate School of Engineering [Suita, Osaka], and ANR-07-BLAN-0239,SECHEL,Simulating Earth Core with High Energy Lasers(2007)

Subjects
Phase transition, Materials science, phase transformation, Thermodynamics, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, Context (language use), Data compression ratio, 02 engineering and technology, Mechanics, Janus laser, 021001 nanoscience & nanotechnology, Compression (physics), Plateau (mathematics), Laser, 01 natural sciences, law.invention, Shock (mechanics), iron, 13. Climate action, law, 0103 physical sciences, Isentropic compression, PACS : 52.50.Jm, 91.35.Cb, 010306 general physics, 0210 nano-technology
Abstract

The iron alpha-epsilon transition is one of the most studied solid-solid phase transitions. However, for quasi-isentropic compression, the dynamic influences of this transition on the high pressure states of iron are still unknown. We present experimental results and numerical simulations to study these effects. Experiments performed at LULI2000 and the Janus laser facility (LLNL), using two different ramp shapes and different compression rates allowed us to study the dynamics of the alpha-epsilon transition. We have observed the transition at particle velocities ranging from 0.25 km/s to 0.52 km/s depending on the compression rate. Depending on the ramp, either a shock formation was observed (high compression rate) at the transition or a flat plateau whose duration is function of compression rate. This plateau results from the interaction of the phase transition dynamic with a small shock precursor at the beginning of the laser ramp. Increasing the compression rate leads to a smaller plateau duration. These results are important for reproducing Earth and Super-earth core conditions (2-15Mbar, 5-15000K) in the laboratory where the quasi-isentropic compression is the most promising experimental scheme.

Published
2012

40. Preliminary results from recent experiments and future roadmap to Shock Ignition of Fusion Targets

Author

Stefano Atzeni, Jiri Skala, L. Labate, Daniele Margarone, J Ullshmied, G. Malka, E. Krousky, J. Badziak, Zofia Kalinowska, Xavier Ribeyre, E. LeBel, Angelo Schiavi, T O'Dell, Michal Smid, Marcin Rosinski, Dimitri Batani, Vladimir Tikhonchuk, J. Nejdl, R. Dudzak, Jerzy Wolowski, Tomasz Chodukowski, Luca Antonelli, L. Giuffrida, Tommaso Vinci, A Patria, Guy Schurtz, Oldrich Renner, M. Krus, T Pysarcizck, Andriy Velyhan, Petra Koester, Maria Richetta, Christopher Spindloe, Luca Volpe, L. A. Gizzi, M. Sawicka, Alberto Marocchino, and Ondrej Klimo

Subjects
History, Materials science, business.industry, RADIATION HYDRODYNAMICS, Settore FIS/01 - Fisica Sperimentale, Phase (waves), INERTIAL CONFINEMENT FUSION, PLASMAS, Plasma, Laser, Computer Science Applications, Education, law.invention, Shock (mechanics), Ignition system, Optics, law, Physics::Plasma Physics, LASER SYSTEM, COMPUTER CODE, Plasma diagnostics, business, Inertial confinement fusion, Beam (structure)
Abstract

Shock ignition (SI) is a new approach to Inertial Confinement Fusion (ICF) based on decoupling the compression and ignition phase. The last one relies on launching a strong shock through a high intensity laser spike (

Published
2012

41. Magnetically Guided Fast Electrons in Cylindrically Compressed Matter

Author

Drew Higginson, Andrew MacPhee, Wigen Nazarov, John Pasley, S. Chawla, M. Koenig, Farhat Beg, Ph. Nicolaï, Tommaso Vinci, Joao Santos, Fabien Dorchies, Arnaud Debayle, S. D. Baton, Rashida Jafer, S. Hulin, B. Vauzour, Carlo Benedetti, L. Labate, R. Heathcote, F. Perez, C. Fourment, Marco Galimberti, J. J. Honrubia, D. Batani, Petra Koester, L. Gremillet, A. J. Mackinnon, Andrea Sgattoni, Maria Richetta, Luca Volpe, Rafael Ramis, Kate Lancaster, Erik Brambrink, L. A. Gizzi, C. Spindloe, Critical Care Department, Hospital de Sabadell, CIBER Enfermedades Respiratorias, Centre d'Etudes Lasers Intenses et Applications (CELIA), Université de Bordeaux (UB)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire pour l'utilisation des lasers intenses (LULI), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Dipartimento di Fisica 'Giuseppe Occhialini' = Department of Physics 'Giuseppe Occhialini' [Milano-Bicocca], Università degli Studi di Milano-Bicocca = University of Milano-Bicocca (UNIMIB), International Institute of Clinical Studies, Laboratoire des matériaux avancés (LMA), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Intense Laser Irradiation Laboratory–IPCF, Area della Ricerca CNR, Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Central Laser Facility (CLF), STFC Rutherford Appleton Laboratory (RAL), Science and Technology Facilities Council (STFC)-Science and Technology Facilities Council (STFC), Pôle Fromager AOP du Massif Central, Istituto Nazionale di Ottica (INO), National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), University of St Andrews [Scotland], Laboratoire d'optique appliquée (LOA), École Nationale Supérieure de Techniques Avancées (ENSTA Paris)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Dipartimento di Energia [Milano], Politecnico di Milano [Milan] (POLIMI), Science and Technology Facilities Council (STFC), DAM Île-de-France (DAM/DIF), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Pérez, F, Debayle, A, Honrubia, J, Koenig, M, Batani, D, Baton, S, Beg, F, Benedetti, C, Brambrink, E, Chawla, S, Dorchies, F, Fourment, C, Galimberti, M, Gizzi, L, Gremillet, L, Heathcote, R, Higginson, D, Hulin, S, Jafer, R, Koester, P, Labate, L, Lancaster, K, Mackinnon, A, Macphee, A, Nazarov, W, Nicolai, P, Pasley, J, Ramis, R, Richetta, M, Santos, J, Sgattoni, A, Spindloe, C, Vauzour, B, Volpe, L, Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Bordeaux (UB), Università degli Studi di Milano-Bicocca [Milano] (UNIMIB), and Consiglio Nazionale delle Ricerche (CNR)

Subjects
[PHYS]Physics [physics], Materials science, Settore FIS/01 - Fisica Sperimentale, General Physics and Astronomy, Context (language use), Electron, Laser, 7. Clean energy, 01 natural sciences, TRANSPORT, Collimated light, 010305 fluids & plasmas, Computational physics, Magnetic field, law.invention, laser, plasmi, fusione nucleare, elettroni rapidi, Electrical resistivity and conductivity, law, 0103 physical sciences, Cathode ray, 010306 general physics, ComputingMilieux_MISCELLANEOUS, FIS/03 - FISICA DELLA MATERIA, Beam (structure)
Abstract

Fast electrons produced by a 10 ps, 160 J laser pulse through laser-compressed plastic cylinders are studied experimentally and numerically in the context of fast ignition. K(alpha)-emission images reveal a collimated or scattered electron beam depending on the initial density and the compression timing. A numerical transport model shows that implosion-driven electrical resistivity gradients induce strong magnetic fields able to guide the electrons. The good agreement with measured beam sizes provides the first experimental evidence for fast-electron magnetic collimation in laser-compressed matter.

Published
2011

42. Investigation of carbon in megabar regime

Author

Yoichiro Hironaka, A. Shiroshita, Dimitri Batani, Roberto Benocci, Toshihiko Kadono, Tommaso Vinci, S Paleari, Keisuke Shigemori, Paleari, S, Batani, D, Vinci, T, Benocci, R, Shigemori, K, Hironaka, Y, Kadono, T, and Shiroshita, A

Subjects
Shock wave, Physics, Nuclear and High Energy Physics, business.industry, Shock-wave, Liquid carbon, chemistry.chemical_element, Substrate (electronics), Reflectivity, Laser, Molecular physics, law.invention, Pulse (physics), Shock (mechanics), Optics, chemistry, law, Reflection (physics), business, Carbon, Instrumentation, Phase diagram
Abstract

In this paper experimental measures of the reflectivity change in carbon compressed to megabar pressures are presented. The experiments were performed at ILE, Osaka University. The GEKKO-XII laser facility was used to produce shock waves into two-layertwo-materials targets made of porous carbon deposited on a transparent substrate. Target design allowed the exploration of the phase diagram by means of samples with different carbon initial density and exploiting the reflection of the shock wave at the interface between carbon and the denser substrate to increase pressure. At the same time, carbon reflectivity could be probed with a secondary laser pulse through the transparent substrate. Also, shock dynamics has been studied thoroughly with numerical simulations performed with the hydrodynamical-radiative code Multi. An increase in carbon reflectivity was evidenced at 2.5 Mbar and 14,000 K. © 2011 Elsevier B.V.

Published
2011

43. Astrophysical outflows simulated by laser-driven plasma jets

Author

C. Michaut, A. Diziere, Serge Bouquet, Tommaso Vinci, Alessandra Ravasio, Emeric Falize, Berenice Loupias, Christopher D. Gregory, M. Koenig, Laboratoire Univers et Théories (LUTH (UMR_8102)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire pour l'utilisation des lasers intenses (LULI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)

Subjects
Physics, Jet (fluid), Young stellar object, Astronomy, Astronomy and Astrophysics, Astrophysics, Plasma, Laser, law.invention, Interstellar medium, Astrophysical jet, Space and Planetary Science, law, Radiative transfer, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics::Galaxy Astrophysics
Abstract

Within the framework of laboratory astrophysics, we form a qualified multidisciplinary group in radiative hydrodynamics. Since 10 years, we have developed laboratory experiments as radiative shocks and plasma jets in connection to astrophysics. Such laboratory experiments provide a unique opportunity to validate models and numerical schemes introduced in radiative hydrodynamics codes. Here we summarize our experimental researches about plasma jets. Laboratory astrophysical experiments have been performed using LULI2000 (France), VULCAN (UK) and GEKKO XII (Japan) intense lasers. The goal of these experiments is to investigate some of the complex features of jets from Young Stellar Objects (YSO), and in particular its interaction with the interstellar medium (ISM).

Published
2010

44. Optical interferometry and data analysis of laser-produced plasmas

Author

Victor Malka, A. Aliverdiev, M. Koenig, Alessandra Benuzzi-Mounaix, Dimitri Batani, R. Dezulian, and Tommaso Vinci

Subjects
Materials science, business.industry, chemistry.chemical_element, Plasma, Laser, law.invention, Power (physics), Interferometry, Optics, Phase shifting interferometry, chemistry, Aluminium, law, Irradiation, business, Laser beams
Abstract

We present our experimental investigations of the temporal evolution of plasmas produced by high power laser irradiation of various types of target materials. We obtained and analysed “high-quality” time-resolved streak-camera interferometric data on the evolution of the plasma electronic profile, which can directly be compared to analytical models and numerical simulations. For aluminium targets, the agreement with 1D simulations performed with the hydrocode MULTI is excellent, at least for large times (t ≥ 400 ps).

Published
2010

45. Proton radiography of a shock-compressed target

Author

Norimasa Ozaki, Damien Hicks, Alessandra Ravasio, S. Le Pape, Berenice Loupias, Dimitri Batani, A. J. Mackinnon, Angelo Schiavi, C. A. Cecchetti, H. S. Park, M. Koenig, R. J. Clarke, Tommaso Vinci, P. K. Patel, R. Dezulian, Lorenzo Romagnani, Alessandra Benuzzi-Mounaix, Laurent Gremillet, S. Bandyopadhyay, Marco Borghesi, T. R. Boehly, M. M. Notley, and E. A. Henry

Subjects
Materials science, Proton, business.industry, Monte Carlo method, Plasma, Laser, Shock (mechanics), Pulse (physics), law.invention, Optics, law, Industrial radiography, Physics::Accelerator Physics, Atomic physics, business, Beam (structure)
Abstract

In this paper we report on the radiography of a shock-compressed target using laser produced proton beams. A low-density carbon foam target was shock compressed by long pulse high-energy laser beams. The shock front was transversally probed with a proton beam produced in the interaction of a high intensity laser beam with a gold foil. We show that from radiography data, the density profile in the shocked target can be deduced using Monte Carlo simulations. By changing the delay between long and short pulse beams, we could probe different plasma conditions and structures, demonstrating that the details of the steep density gradient can be resolved. This technique is validated as a diagnostic for the investigation of warm dense plasmas, allowing an in situ characterization of high-density contrasted plasmas.

Published
2010

46. High-power laser shock-induced dynamic fragmentation of iron foils

Author

F. Occelli, A. Diziere, Erik Brambrink, Tommaso Vinci, Guillaume Morard, T. de Rességuier, Huigang Wei, E. Lescoute, Alessandra Benuzzi-Mounaix, François Guyot, Guillaume Fiquet, M. Koenig, Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS), Institut Pprime (PPRIME), ENSMA-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers, Laboratoire pour l'utilisation des lasers intenses (LULI), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Centre National de la Recherche Scientifique (CNRS), and Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, business.industry, Scanning electron microscope, PACS : 64.70.dj, 91.35.Lj, 62.50.Ef, 81.30. t, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, 02 engineering and technology, Electron, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Spall, Laser, 01 natural sciences, Molecular physics, Electronic, Optical and Magnetic Materials, law.invention, Interferometry, Optics, law, Free surface, 0103 physical sciences, Ultimate tensile strength, 010306 general physics, 0210 nano-technology, business, Phase diagram
Abstract

International audience; High-power laser shots were performed on 100- m-thick iron foils, leading to shock loading pressures ranging from about 100 to 300 GPa. Free surface velocities were measured by interferometry. Ejected fragments recovered on polycarbonate shields were analyzed using scanning electron microscopy. Particle-size distributions were extracted from backscattered electrons images. These distributions, as well as the morphologies of fragments and the values of the tensile strength, change abruptly with increasing laser intensity. One-dimensional hydrodynamic simulations were performed in order to interpret these evolutions. By comparison with recent static measurements and calculations of the iron phase diagram, the BLF Bushman, Lomonosov and Fortov equation of state was inferred to provide more realistic predictions than SESAME 2150 at the highest pressures investigated. The calculated decompression paths show that spall fracturation took place in the solid state, either in or in iron, this phase difference being the simplest hypothesis for explaining the changes observed in the fragmentation behavior.

Published
2010

47. Enhanced Isochoric Heating from Fast Electrons Produced by High-Contrast, Relativistic-Intensity Laser Pulses

Author

L. Gremillet, M. Koenig, Sandrine Gaillard, S. D. Baton, Ronnie Shepherd, Kirk Flippo, J. Rassuchine, Makhlad Chahid, F. Perez, C. Rousseaux, Erik Lefebvre, Tommaso Vinci, Thomas E. Cowan, P. Audebert, and M. Drouin

Subjects
Physics, Isochoric process, General Physics and Astronomy, chemistry.chemical_element, Fermion, Plasma, Electron, Laser, law.invention, Pulse (physics), chemistry, Aluminium, law, Atomic physics, Intensity (heat transfer)
Abstract

Thin, mass-limited targets composed of V/Cu/Al layers with diameters ranging from 50 to 300 μm have been isochorically heated by a 300 fs laser pulse delivering up to 10 J at 2×1019 W/cm2 irradiance. Detailed spectral analysis of the Cu x-ray emission indicates that the highest temperatures, of the order of 100 eV, have been reached when irradiating the smallest targets with a high-contrast, frequency-doubled pulse despite a reduced laser energy. Collisional particle-in-cell simulations confirm the detrimental influence of the preformed plasma on the bulk target heating.

Published
2010

48. Coronal hydrodynamics of laser-produced plasmas

Author

M. Koenig, R. Dezulian, A. Aliverdiev, Victor Malka, Tommaso Vinci, Alessandra Benuzzi-Mounaix, Dimitri Batani, Institute of Physics of Daghestan Scientific Center of Russian Academy of the Science, Russian Academy of Science (RAS), Dipartimento di Fisica 'Giuseppe Occhialini' = Department of Physics 'Giuseppe Occhialini' [Milano-Bicocca], Università degli Studi di Milano-Bicocca = University of Milano-Bicocca (UNIMIB), Laboratoire pour l'utilisation des lasers intenses (LULI), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'optique appliquée (LOA), École Nationale Supérieure de Techniques Avancées (ENSTA Paris)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Russian Academy of the Science, and Università degli Studi di Milano-Bicocca [Milano] (UNIMIB)

Subjects
Radiation transport, Physics, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Plasma, Laser, 01 natural sciences, 010305 fluids & plasmas, law.invention, law, 0103 physical sciences, Irradiation, Atomic physics, PACS 52.50.Jm, 52.38.−r, 52.70.−m, 52.65.−y, 010306 general physics
Abstract

International audience; We present the results of an experimental investigation of the temporal evolution of plasmas produced by high power laser irradiation of various types of target materials (at intensities I_L=400 ps). In this case, simulations also show that the effect of radiation transport is negligible. The situation is quite different for gold targets for which, in order to get a fair agreement, radiation transport must be taken into account.

Published
2008

49. Plasma jet experiments in vacuum and in ambient medium using high energy lasers

Author

Alessandra Benuzzi-Mounaix, Berenice Loupias, J. Howe, Angelo Schiavi, M. Rabec le Goahec, Norimasa Ozaki, A. Y. Faenov, T. A. Pikuz, Hideaki Takabe, Serge Bouquet, Ryosuke Kodama, Stefano Atzeni, Youichi Sakawa, M. Koenig, Nigel Woolsey, Yefim Aglitskiy, Tommaso Vinci, Wigen Nazarov, Emeric Falize, C. Michaut, O Akira, and Christopher D. Gregory

Subjects
Physics, History, High energy, Jet (fluid), Astrophysics::High Energy Astrophysical Phenomena, High velocity, Nozzle, Plasma jet, Laser, Computer Science Applications, Education, law.invention, Computational physics, law, HiPER, High Energy Physics::Experiment, Atomic physics, Dimensionless quantity
Abstract

We present promising experimental results for laboratory astrophysics. These experiments were performed in France at the LULI2000 facility to study jet propagation in vacuum and in Japan at ILE using Gekko XII HIPER Laser for jet evolution in an ambient medium. A foam filled cone target was used to generate high velocity plasma jet, and a gas jet nozzle was used to produce the ambient medium. Using visible and X-ray diagnostics, we measured the jet parameters such as: density, temperature and velocity. We were able to determine experimentally the jet dimensionless quantities to compare with astrophysical objects.

Published
2008

50. Inhibition of fast electron energy deposition due to preplasma filling of cone-attached targets

Author

Alessio Morace, Angelo Schiavi, Laurent Gremillet, Dimitri Batani, Julien Fuchs, C. Fourment, P. Guillou, C. Rousseaux, M. Koenig, Joao Santos, Berenice Loupias, Ryosuke Kodama, Motoaki Nakatsutsumi, Yefim Aglitskiy, Sophie Baton, Norimasa Ozaki, Stefano Atzeni, Takayoshi Norimatsu, M. Drouin, Alessandra Benuzzi-Mounaix, Tommaso Vinci, R. Redaelli, A. Nishida, Fabien Dorchies, Erik Lefebvre, Dorchies, Fabien, Centre d'Etudes Lasers Intenses et Applications (CELIA), Université de Bordeaux (UB)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'optique appliquée (LOA), École Nationale Supérieure de Techniques Avancées (ENSTA Paris)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Dipartimento di Fisica 'Giuseppe Occhialini' = Department of Physics 'Giuseppe Occhialini' [Milano-Bicocca], Università degli Studi di Milano-Bicocca = University of Milano-Bicocca (UNIMIB), Laboratoire pour l'utilisation des lasers intenses (LULI), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Graduate School of Engineering, Osaka University, Graduate School of Engineering, Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency [Sagamihara] (JAXA), Graduate School of Engineering [Suita, Osaka], Osaka University [Osaka], Dipartimento di Energetica, Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome] (UNIROMA), Origine, structure et évolution de la biodiversité (OSEB), Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Thomas Jefferson National Accelerator Facility (Jefferson Lab), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), DAM Île-de-France (DAM/DIF), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Bordeaux (UB), Università degli Studi di Milano-Bicocca [Milano] (UNIMIB), Osaka University, Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome], and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)

Subjects
Physics, [PHYS]Physics [physics], Electron density, Energy flux, Conical surface, Electron, Plasma, Condensed Matter Physics, Laser, 01 natural sciences, 010305 fluids & plasmas, law.invention, [PHYS] Physics [physics], Wavelength, Planar, law, 0103 physical sciences, Atomic physics, 010306 general physics, ComputingMilieux_MISCELLANEOUS
Abstract

We present experimental and numerical results on the propagation and energy deposition of laser-generated fast electrons into conical targets. The first part reports on experimental measurements performed in various configurations in order to assess the predicted benefit of conical targets over standard planar ones. For the conditions investigated here, the fast electron-induced heating is found to be much weaker in cone-guided targets irradiated at a laser wavelength of 1.057μm, whereas frequency doubling of the laser pulse permits us to bridge the disparity between conical and planar targets. This result underscores the prejudicial role of the prepulse-generated plasma, whose confinement is enhanced in conical geometry. The second part is mostly devoted to the particle-in-cell modeling of the laser-cone interaction. In qualitative agreement with the experimental data, the calculations show that the presence of a large preplasma leads to a significant decrease in the fast electron density and energy flux...

Published
2008

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