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Showing 1–3 of 3 results
Advanced filters: Author: Sadaoki Kojima Clear advanced filters
  • It is desirable to deposit more energy in the dense plasma core to trigger the fusion ignition. Here the authors demonstrate enhanced energy coupling from laser to plasma core by using solid targets and guiding the transport of relativistic electron beam with external magnetic field.

    • Shohei Sakata
    • Seungho Lee
    • Shinsuke Fujioka
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-9
  • Different energy transport mechanisms come into play when intense laser pulses interact with dense plasma. Here the authors provide a limit on the plasma density reachable with an intense laser and an insight into the hole boring process.

    • Natsumi Iwata
    • Sadaoki Kojima
    • Kunioki Mima
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-7
  • When a material is irradiated with a high-intensity laser pulse, its surface ionization generates electrons that are accelerated close to the speed of light by the ponderomotive force of the laser light, yet how electrons’ kinetic energy scales with laser power is still unclear. The authors experimentally clarify this relation and by modelling individual electron trajectories using numerical simulations identify two acceleration mechanisms for the generation of relativistic electrons related to the dependency of the electric and magnetic fields.

    • Sadaoki Kojima
    • Masayasu Hata
    • Shinsuke Fujioka
    ResearchOpen Access
    Communications Physics
    Volume: 2, P: 1-12