Gigagauss magnetic field generation by bladed microtube implosion

Abstract

We demonstrate the generation of ultrahigh magnetic fields in the order of gigagauss using a bladed microtube target whose inner surface is periodically slanted in a sawtooth-like pattern. When irradiated by ultra-intense, ultrashort laser pulses, hot electrons with MeV energies are produced at the outer surface and swiftly transported to the inner surface, initiating a rapid implosion of plasma toward the central axis. The unique blade-induced asymmetry gives rise to vortex-shaped flows of ions and electrons near the center, forming strong azimuthal loop currents that generate ultrahigh magnetic fields at the center. Two-dimensional particle-in-cell simulations, supported by a simple analytical model, elucidate the underlying physics and reveal key scaling laws governing the field strength and spatial confinement.

References in corpus (6)

• Giga-Gauss scale quasistatic magnetic field generation in an 'escargot' target
• Weakly collisional Landau damping and three-dimensional Bernstein-Greene-Kruskal modes: New results on old problems
• Quantification of MagLIF morphology using the Mallat Scattering Transformation
• Sign reversal in magnetic field amplification by relativistic laser-driven microtube implosions
• Magnetic field amplification driven by the gyro motion of charged particles
• Mallat Scattering Transformation based surrogate for MagnetoHydroDynamics

Cited by in corpus (1)

• Pushing the Frontiers of Light: Magnetized Plasma Lenses and Chirp Tailoring for Extreme Intensities