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Ruyer C, Fusaro A, Debayle A, Capdessus R, Loiseau P, Masson-Laborde PE. Influence of a random phase plate on the growth of the backward stimulated Brillouin scatter. Phys Rev E 2023; 107:035208. [PMID: 37073038 DOI: 10.1103/physreve.107.035208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 03/01/2023] [Indexed: 04/20/2023]
Abstract
We derive the analytical dispersion relation of a high-energy laser beam's backward stimulated Brillouin scattering (BSBS) in a hot plasma, that accounts both for the random phase plate (RPP) induced spatial shaping and its associated phase randomness. Indeed, phase plates are mandatory in large laser facilities where a precise control of the focal spot size is required. While the focal spot size is well controlled, such techniques produce small scale intensity variations that can trigger laser-plasma instabilities such as BSBS. Quantifying the resulting instability variability is shown to be crucial for understanding accurately the backscattering temporal and spatial growth as well as the asymptotic reflectivity. Our model, validated by means of a large number of three-dimensional paraxial simulations and experimental data, offers three quantitative predictions. The first one addresses the temporal exponential growth of the reflectivity by deriving and solving the BSBS RPP dispersion relation. A large statistical variability of the temporal growth rate is shown to be directly related to the phase plate randomness. Then, we predict the portion of the beam's section that is absolutely unstable, thus helping to precisely assess the validity of the vastly used convective analysis. Finally, a simple analytical correction to the plane wave spatial gain is extracted from our theory giving a practical and effective asymptotic reflectivity prediction that includes the impact of phase plates smoothing techniques. Hence, our study sheds light on the long-time studied BSBS, deleterious to many high-energy experimental studies related to the physics of inertial confinement fusion.
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Affiliation(s)
- C Ruyer
- CEA, DAM, DIF, F-91297 Arpajon, France and Université Paris-Saclay, CEA, Laboratoire Matière en Conditions Extrêmes, 91680 Bruyères-le-Châtel, France
| | - A Fusaro
- CEA, DAM, DIF, F-91297 Arpajon, France and Université Paris-Saclay, CEA, Laboratoire Matière en Conditions Extrêmes, 91680 Bruyères-le-Châtel, France
| | - A Debayle
- CEA, DAM, DIF, F-91297 Arpajon, France and Université Paris-Saclay, CEA, Laboratoire Matière en Conditions Extrêmes, 91680 Bruyères-le-Châtel, France
| | - R Capdessus
- CEA, DAM, DIF, F-91297 Arpajon, France and Université Paris-Saclay, CEA, Laboratoire Matière en Conditions Extrêmes, 91680 Bruyères-le-Châtel, France
| | - P Loiseau
- CEA, DAM, DIF, F-91297 Arpajon, France and Université Paris-Saclay, CEA, Laboratoire Matière en Conditions Extrêmes, 91680 Bruyères-le-Châtel, France
| | - P E Masson-Laborde
- CEA, DAM, DIF, F-91297 Arpajon, France and Université Paris-Saclay, CEA, Laboratoire Matière en Conditions Extrêmes, 91680 Bruyères-le-Châtel, France
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Ribeyre X, Capdessus R, Wheeler J, d'Humières E, Mourou G. Multiscale study of high energy attosecond pulse interaction with matter and application to proton-Boron fusion. Sci Rep 2022; 12:4665. [PMID: 35304500 PMCID: PMC8933570 DOI: 10.1038/s41598-022-08433-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 03/04/2022] [Indexed: 11/09/2022] Open
Abstract
For several decades, the interest of the scientific community in aneutronic fusion reactions such as proton-Boron fusion has grown because of potential applications in different fields. Recently, many scientific teams in the world have worked experimentally on the possibility to trigger proton-Boron fusion using intense lasers demonstrating an important renewal of interest of this field. It is now possible to generate ultra-short high intensity laser pulses at high repetition rate. These pulses also have unique properties that can be leveraged to produce proton-Boron fusion reactions. In this article, we investigate the interaction of a high energy attosecond pulse with a solid proton-Boron target and the associated ion acceleration supported by numerical simulations. We demonstrate the efficiency of single-cycle attosecond pulses in comparison to multi-cycle attosecond pulses in ion acceleration and magnetic field generation. Using these results we also propose a path to proton-Boron fusion using high energy attosecond pulses.
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Affiliation(s)
- X Ribeyre
- Centre Laser Intenses et Applications, Univ. Bordeaux-CNRS-CEA, UMR 5107, 33405, Talence, France.
| | - R Capdessus
- Centre Laser Intenses et Applications, Univ. Bordeaux-CNRS-CEA, UMR 5107, 33405, Talence, France
| | - J Wheeler
- DER-IZEST, Ecole Polytechnique, 91128, Palaiseau Cedex, France
| | - E d'Humières
- Centre Laser Intenses et Applications, Univ. Bordeaux-CNRS-CEA, UMR 5107, 33405, Talence, France
| | - G Mourou
- DER-IZEST, Ecole Polytechnique, 91128, Palaiseau Cedex, France
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Duff MJ, Wilson R, King M, Gonzalez-Izquierdo B, Higginson A, Williamson SDR, Davidson ZE, Capdessus R, Booth N, Hawkes S, Neely D, Gray RJ, McKenna P. High order mode structure of intense light fields generated via a laser-driven relativistic plasma aperture. Sci Rep 2020; 10:105. [PMID: 31919383 PMCID: PMC6952361 DOI: 10.1038/s41598-019-57119-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 12/03/2019] [Indexed: 11/10/2022] Open
Abstract
The spatio-temporal and polarisation properties of intense light is important in wide-ranging topics at the forefront of extreme light-matter interactions, including ultrafast laser-driven particle acceleration, attosecond pulse generation, plasma photonics, high-field physics and laboratory astrophysics. Here, we experimentally demonstrate modifications to the polarisation and temporal properties of intense light measured at the rear of an ultrathin target foil irradiated by a relativistically intense laser pulse. The changes are shown to result from a superposition of coherent radiation, generated by a directly accelerated bipolar electron distribution, and the light transmitted due to the onset of relativistic self-induced transparency. Simulations show that the generated light has a high-order transverse electromagnetic mode structure in both the first and second laser harmonics that can evolve on intra-pulse time-scales. The mode structure and polarisation state vary with the interaction parameters, opening up the possibility of developing this approach to achieve dynamic control of structured light fields at ultrahigh intensities.
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Affiliation(s)
- M J Duff
- SUPA Department of Physics, University of Strathclyde, Glasgow, G4 0NG, UK
| | - R Wilson
- SUPA Department of Physics, University of Strathclyde, Glasgow, G4 0NG, UK
| | - M King
- SUPA Department of Physics, University of Strathclyde, Glasgow, G4 0NG, UK
| | | | - A Higginson
- SUPA Department of Physics, University of Strathclyde, Glasgow, G4 0NG, UK
| | - S D R Williamson
- SUPA Department of Physics, University of Strathclyde, Glasgow, G4 0NG, UK
| | - Z E Davidson
- SUPA Department of Physics, University of Strathclyde, Glasgow, G4 0NG, UK
| | - R Capdessus
- SUPA Department of Physics, University of Strathclyde, Glasgow, G4 0NG, UK
| | - N Booth
- Central Laser Facility, STFC Rutherford Appleton Laboratory, Oxfordshire, OX11 0QX, UK
| | - S Hawkes
- Central Laser Facility, STFC Rutherford Appleton Laboratory, Oxfordshire, OX11 0QX, UK
| | - D Neely
- SUPA Department of Physics, University of Strathclyde, Glasgow, G4 0NG, UK.,Central Laser Facility, STFC Rutherford Appleton Laboratory, Oxfordshire, OX11 0QX, UK
| | - R J Gray
- SUPA Department of Physics, University of Strathclyde, Glasgow, G4 0NG, UK
| | - P McKenna
- SUPA Department of Physics, University of Strathclyde, Glasgow, G4 0NG, UK.
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Capdessus R, McKenna P. Influence of radiation reaction force on ultraintense laser-driven ion acceleration. Phys Rev E Stat Nonlin Soft Matter Phys 2015; 91:053105. [PMID: 26066270 DOI: 10.1103/physreve.91.053105] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Indexed: 06/04/2023]
Abstract
The role of the radiation reaction force in ultraintense laser-driven ion acceleration is investigated. For laser intensities ∼10(23)W/cm(2), the action of this force on electrons is demonstrated in relativistic particle-in-cell simulations to significantly enhance the energy transfer to ions in relativistically transparent targets, but strongly reduce the ion energy in dense plasma targets. An expression is derived for the revised piston velocity, and hence ion energy, taking account of energy loses to synchrotron radiation generated by electrons accelerated in the laser field. Ion mass is demonstrated to be important by comparing results obtained with proton and deuteron plasma. The results can be verified in experiments with cryogenic hydrogen and deuterium targets.
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Affiliation(s)
- R Capdessus
- Department of Physics SUPA, University of Strathclyde, Glasgow G4 0NG, United Kingdom
| | - P McKenna
- Department of Physics SUPA, University of Strathclyde, Glasgow G4 0NG, United Kingdom
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Capdessus R, d'Humières E, Tikhonchuk VT. Influence of ion mass on laser-energy absorption and synchrotron radiation at ultrahigh laser intensities. Phys Rev Lett 2013; 110:215003. [PMID: 23745889 DOI: 10.1103/physrevlett.110.215003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Indexed: 06/02/2023]
Abstract
The role of ions in the energy absorption of a short and ultraintense laser pulse and in the synchrotron radiation generated by accelerated electrons is revisited. For laser intensities above 10(22) W/cm(2) and plasma densities more than 10 times the critical density, the ion-to-electron mass ratio strongly affects the energy repartition between the electrons, ions, and radiation. This phenomenon is studied with a one-dimensional relativistic particle-in-cell code, taking into account the radiation reaction force. The choice of the ion mass strongly affects the energy and angular distribution of the photon emission and the electron energy distribution. This effect may be important for laboratory modeling of radiation dominated relativistic astrophysical events. It can be verified in experiments with solid hydrogen targets.
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Affiliation(s)
- R Capdessus
- University Bordeaux-CNRS-CEA, CELIA, UMR 5107, F-33400 Talence, France.
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Davis S, Capdessus R, d'Humières E, Brantov A, Bochkarev S, Tikhonchuk V. Numerical simulations of energy transfer in two collisionless interpenetrating plasmas. EPJ Web of Conferences 2013. [DOI: 10.1051/epjconf/20135915003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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d'Humières E, Capdessus R, Tikhonchuk V. Laser ion acceleration in the high laser energy and high laser intensity regimes. EPJ Web of Conferences 2013. [DOI: 10.1051/epjconf/20135917010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Capdessus R, d'Humières E, Tikhonchuk VT. Modeling of radiation losses in ultrahigh power laser-matter interaction. Phys Rev E Stat Nonlin Soft Matter Phys 2012; 86:036401. [PMID: 23031028 DOI: 10.1103/physreve.86.036401] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Indexed: 06/01/2023]
Abstract
Radiation losses of electrons in ultraintense laser fields constitute a process that can be important for electron and ion acceleration and creation of secondary emissions. The importance of this effect for ion acceleration to high energies is studied as a function of the laser intensity and the target thickness and density. For instance, in the piston regime, radiation losses lead to a reduction of the piston velocity and to less-efficient ion acceleration. Radiation losses have been implemented in the relativistic particle-in-cell code by using a renormalized Lorentz-Abraham-Dirac model.
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Affiliation(s)
- R Capdessus
- University Bordeaux, CNRS, CEA, CELIA, UMR 5107, F-33400 Talence, France.
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