skip to main content

SciTech ConnectSciTech Connect

Title: Fast magnetic field annihilation driven by two laser pulses in underdense plasma

Fast magnetic annihilation is investigated by using 2.5-dimensional particle-in-cell simulations of two parallel ultra-short petawatt laser pulses co-propagating in underdense plasma. The magnetic field generated by the laser pulses annihilates in a current sheet formed between the pulses. Magnetic field energy is converted to an inductive longitudinal electric field, which efficiently accelerates the electrons of the current sheet. This new regime of collisionless relativistic magnetic field annihilation with a timescale of tens of femtoseconds can be extended to near-critical and overdense plasma with the ultra-high intensity femtosecond laser pulses.
Authors:
; ; ;  [1] ;  [1] ;  [2] ; ;  [3]
  1. Institute of Physics of the ASCR, ELI-Beamlines, 18221 Prague (Czech Republic)
  2. (Czech Republic)
  3. Kansai Photon Science Institute, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa-shi, Kyoto 619-0215 (Japan)
Publication Date:
OSTI Identifier:
22486458
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 10; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ANNIHILATION; BEAM CURRENTS; COMPUTERIZED SIMULATION; ELECTRIC FIELDS; ELECTRONS; LASER RADIATION; MAGNETIC FIELDS; PETAWATT POWER RANGE; PLASMA DENSITY; PULSES; RELATIVISTIC RANGE