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  1. ui.adsabs.harvard.edu

    Crossed-beam energy transfer (CBET) between laser beams in underdense plasma is ubiquitous in both direct-drive and indirect-drive inertial confinement fusion. To understand the impact of this process on the final shape of the laser beams involved, as well as their imprint on either hohlraum walls or target surface, a detailed spatial and temporal description of the crossing beams is needed ...
    Author:R. Trines, H. Schmitz, E.P. Alves, F. Fiuza, J. Vieira, L.O. Silva, R. BinghamPublished:2016
  2. royalsocietypublishing.org

    Crossed beam energy transfer, CBET, in high-intensity laser-plasma interaction is investigated for the case of optically smoothed laser beams. In the two approaches to laser-driven inertial confinement fusion experiments, the direct-drive and the indirect-...
    Author:Stefan Hüller, Gaurav Raj, Mufei Luo, Mufei Luo, Wojciech Rozmus, Denis PesmePublished:2020
  3. absimage.aps.org

    A new criterion to describe crossed-beam energy transfer in laser-plasma interactions R. TRINES, H. SCHMITZ, STFC Rutherford Appleton Lab- asma is ubiquitous in both direct-drive and indirect-drive inertial con nement fusion. To understand the impact of this process on the nal shape of the laser beams involved, as well as their imprint on ...
  4. sciencedirect.com

    Induced plasma perturbations are assumed to be imposed on a prescribed large-scale inhomogeneous background that includes spatially varying plasma density and flow. Our code is directly relevant to the problem of cross-beam energy transfer in laser-driven inertial confinement fusion.
    Author:Jason F. Myatt, Jason F. Myatt, John G. Shaw, Russell K. Follett, Dana H. Edgell, Dustin H. Froula, ...Published:2019
  5. Apr 26, 2023In cross-beam energy transfer (CBET), the interference of two laser beams ponderomotively drives an ion-acoustic wave that coherently scatters light from one beam into the other. This redirection of laser beam energy can severely inhibit the performance of direct-drive inertial confinement fusion (ICF) implosions. To assess the role of nonlinear and kinetic processes in direct-drive-relevant ...
  6. pubs.aip.org

    Aug 11, 2023The compression of direct-drive inertial confinement fusion (ICF) targets is strongly impacted by cross-beam energy transfer (CBET), a laser-plasma instability that limits ablation pressure by redirecting laser energy outward and that is projected to be mitigated by laser bandwidth.
  7. pubs.aip.org

    We developed a numerical code that describes both the energy transfer occurring when two or more laser beams overlap in a weakly non-homogeneous plasma, and the beam energy losses associated with the electron-ion collisions. The numerical solutions are validated with both the exact analytical solutions in homogeneous plasmas, and with new approximate analytical solutions in non-homogeneous ...
  8. pubmed.ncbi.nlm.nih.gov

    Crossed beam energy transfer, CBET, in high-intensity laser-plasma interaction is investigated for the case of optically smoothed laser beams. In the two approaches to laser-driven inertial confinement fusion experiments, the direct-drive and the indirect-drive, CBET is of great importance because it governs the coupling of laser energy to the ...
  9. link.aps.org

    Cross-beam energy transfer (CBET) is a signi cant energy-loss mechanism in directly-driven inertial-con nement-fusion (ICF) targets. One strategy for mitigating CBET is to increase the bandwidth of the laser light, thereby disrupting the resonant three-wave interactions that underlie this nonlinear scattering process. Here, we report on numerical simulations performed with the wave-based code ...

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