Magnetic field amplification in relativistic-laser-driven implosion of a preformed cylindrical shock wave structure in a gas
POSTER
Abstract
Laser-driven generation and amplification of quasistatic magnetic fields have seen an increased interest in the last few years. Using three-dimensional particle-in-cell simulations, we demonstrate the amplification of a seed magnetic field in a converging cylindrical shock-wave structure at gas densities. The shock wave is formed by ionizing a gas jet with a structured laser beam of sub-relativistic intensity (high-order Bessel beam at 1015 W/cm2) and subsequently heated by a relativistic-intensity laser pulse (>1018 W/cm2 at 800 nm wavelength). Our simulation results suggest that considerable enhancement of magnetic fields may be possible with this renewable, debris-free approach.
*This work was partially supported by the National Science Foundation under Grant No. PHY 1806911 and the Department of Energy under grant No. DE-SC0017907. J.G.-M. gratefully acknowledges the support of the NSF through a Graduate Research Fellowship. Simulations were performed at the High Performance Computing Center at Princeton University. The EPOCH code was funded by the UK EPSRC grants EP/G054950/1, EP/G056803/1, EP/G055165/1 and EP/ M022463/1.
Presenters
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Jesse Griff-McMahon
- Princeton University