H Takabe, Y Kuramitsu - High Power Laser Science and Engineering, 2021 - cambridge.org
Thanks to a rapid progress of high-power lasers since the birth of laser by TH Maiman in 1960, intense lasers have been developed mainly for studying the scientific feasibility of …
We investigated electromagnetic precursor wave emission in relativistic shocks by using two- dimensional particle-in-cell simulations. We found that the wave amplitude is significantly …
We report the experimental results of a turbulent electric field driven by Kelvin-Helmholtz instability associated with laser produced collisionless shock waves. By irradiating an …
Particle acceleration at magnetized purely perpendicular relativistic shocks in electron–ion plasmas is studied by means of two-dimensional particle-in-cell simulations. Magnetized …
We report our recent efforts on the experimental investigations related to the origins of cosmic rays. The origins of cosmic rays are long standing open issues in astrophysics. The …
Recent progresses of laser technologies enable us to investigate space and astrophysical phenomena in laboratories. In space plasmas the local observations by spacecrafts provide …
The Weibel instability is investigated using relativistic intense short laser pulses. A relativistic short laser pulse can generate a sub-relativistic high-density collisionless plasma. By …
Proton radiography is a key diagnostics to measure and image the electric/magnetic field in laser-produced plasmas. A thin solid target is irradiated with an intense laser pulse to …
Y Hu, X Geng, H Takabe, Y Kuramitsu, J Zhu, L Ji… - Physics of …, 2024 - pubs.aip.org
Relativistic laser–plasma interaction can produce nonthermal electron spectra in power-law scaling. The power-law index for near-critical density plasmas changes between 1.8 and 2.0 …