skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Energy gain by laser-accelerated electrons in a strong magnetic field

Abstract

This paper deals with electron acceleration by a laser pulse in a plasma with a static uniform magnetic field B*. The laser pulse propagates perpendicular to the magnetic field lines with the polarization chosen such that (Elaser · B* ) = 0. The focus of the work is on the electrons with an appreciable initial transverse momentum that are unable to gain significant energy from the laser in the absence of the magnetic field due to strong dephasing. It is shown that the magnetic field can initiate an energy increase by rotating such an electron, so that its momentum becomes directed forward. The energy gain continues well beyond this turning point where the dephasing drops to a very small value. In contrast to the case of purely vacuum acceleration, the electron experiences a rapid energy increases with the analytically derived maximum energy gain dependent on the strength of the magnetic field and the phase velocity of the wave. The energy enhancement by the magnetic field can be useful at high laser amplitudes, a0 » 1, where the acceleration similar to that in the vacuum is unable to produce energetic electrons over just tens of microns. A strong magnetic field helpsmore » leverage an increase in a0 without a significant increase in the interaction length.« less

Authors:
ORCiD logo [1]; ORCiD logo [2];  [3]
  1. Univ. of California, San Diego, CA (United States)
  2. Univ. of Texas, Austin, TX (United States)
  3. Science and Technology Facilities Council (STFC), Oxford (United Kingdom). Rutherford Appleton Lab. (RAL)
Publication Date:
Research Org.:
Univ. of California, San Diego, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES)
OSTI Identifier:
1608132
Alternate Identifier(s):
OSTI ID: 1608180
Grant/Contract Number:  
SC0018312
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review E
Additional Journal Information:
Journal Volume: 101; Journal Issue: 4; Journal ID: ISSN 2470-0045
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

Arefiev, A., Gong, Z., and Robinson, A. P. L. Energy gain by laser-accelerated electrons in a strong magnetic field. United States: N. p., 2020. Web. doi:10.1103/PhysRevE.101.043201.
Arefiev, A., Gong, Z., & Robinson, A. P. L. Energy gain by laser-accelerated electrons in a strong magnetic field. United States. doi:https://doi.org/10.1103/PhysRevE.101.043201
Arefiev, A., Gong, Z., and Robinson, A. P. L. Fri . "Energy gain by laser-accelerated electrons in a strong magnetic field". United States. doi:https://doi.org/10.1103/PhysRevE.101.043201. https://www.osti.gov/servlets/purl/1608132.
@article{osti_1608132,
title = {Energy gain by laser-accelerated electrons in a strong magnetic field},
author = {Arefiev, A. and Gong, Z. and Robinson, A. P. L.},
abstractNote = {This paper deals with electron acceleration by a laser pulse in a plasma with a static uniform magnetic field B*. The laser pulse propagates perpendicular to the magnetic field lines with the polarization chosen such that (Elaser · B* ) = 0. The focus of the work is on the electrons with an appreciable initial transverse momentum that are unable to gain significant energy from the laser in the absence of the magnetic field due to strong dephasing. It is shown that the magnetic field can initiate an energy increase by rotating such an electron, so that its momentum becomes directed forward. The energy gain continues well beyond this turning point where the dephasing drops to a very small value. In contrast to the case of purely vacuum acceleration, the electron experiences a rapid energy increases with the analytically derived maximum energy gain dependent on the strength of the magnetic field and the phase velocity of the wave. The energy enhancement by the magnetic field can be useful at high laser amplitudes, a0 » 1, where the acceleration similar to that in the vacuum is unable to produce energetic electrons over just tens of microns. A strong magnetic field helps leverage an increase in a0 without a significant increase in the interaction length.},
doi = {10.1103/PhysRevE.101.043201},
journal = {Physical Review E},
number = 4,
volume = 101,
place = {United States},
year = {2020},
month = {4}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 1 work
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Particle acceleration in relativistic laser channels
journal, July 1999

  • Pukhov, A.; Sheng, Z. -M.; Meyer-ter-Vehn, J.
  • Physics of Plasmas, Vol. 6, Issue 7
  • DOI: 10.1063/1.873242

Electron Acceleration in Cavitated Channels Formed by a Petawatt Laser in Low-Density Plasma
journal, June 2005


Plasma cavitation in ultraintense laser interactions with underdense helium plasmas
journal, April 2010


Beyond the ponderomotive limit: Direct laser acceleration of relativistic electrons in sub-critical plasmas
journal, April 2016

  • Arefiev, A. V.; Khudik, V. N.; Robinson, A. P. L.
  • Physics of Plasmas, Vol. 23, Issue 5
  • DOI: 10.1063/1.4946024

Review of laser-driven ion sources and their applications
journal, April 2012

  • Daido, Hiroyuki; Nishiuchi, Mamiko; Pirozhkov, Alexander S.
  • Reports on Progress in Physics, Vol. 75, Issue 5
  • DOI: 10.1088/0034-4885/75/5/056401

Ion acceleration by superintense laser-plasma interaction
journal, May 2013

  • Macchi, Andrea; Borghesi, Marco; Passoni, Matteo
  • Reviews of Modern Physics, Vol. 85, Issue 2
  • DOI: 10.1103/RevModPhys.85.751

Production of neutrons up to 18 MeV in high-intensity, short-pulse laser matter interactions
journal, October 2011

  • Higginson, D. P.; McNaney, J. M.; Swift, D. C.
  • Physics of Plasmas, Vol. 18, Issue 10
  • DOI: 10.1063/1.3654040

Ultrashort Pulsed Neutron Source
journal, October 2014


High energy electrons, nuclear phenomena and heating in petawatt laser-solid experiments
journal, October 1999


Relativistic Positron Creation Using Ultraintense Short Pulse Lasers
journal, March 2009


Relativistic Quasimonoenergetic Positron Jets from Intense Laser-Solid Interactions
journal, July 2010


MeV X Rays and Photoneutrons from Femtosecond Laser-Produced Plasmas
journal, March 2001


Characteristics of betatron radiation from direct-laser-accelerated electrons
journal, June 2016


Enhanced Multi-MeV Photon Emission by a Laser-Driven Electron Beam in a Self-Generated Magnetic Field
journal, May 2016


Laser induced electron acceleration in the presence of static electric and magnetic fields in a plasma
journal, July 2000

  • Tsakiris, G. D.; Gahn, C.; Tripathi, V. K.
  • Physics of Plasmas, Vol. 7, Issue 7
  • DOI: 10.1063/1.874154

Multi-MeV Electron Beam Generation by Direct Laser Acceleration in High-Density Plasma Channels
journal, December 1999


On the origin of super-hot electrons from intense laser interactions with solid targets having moderate scale length preformed plasmas
journal, February 2014

  • Krygier, A. G.; Schumacher, D. W.; Freeman, R. R.
  • Physics of Plasmas, Vol. 21, Issue 2
  • DOI: 10.1063/1.4866587

Vacuum electron acceleration by coherent dipole radiation
journal, July 1999


Generation of Superponderomotive Electrons in Multipicosecond Interactions of Kilojoule Laser Beams with Solid-Density Plasmas
journal, April 2016


High-Power, Kilojoule Class Laser Channeling in Millimeter-Scale Underdense Plasma
journal, March 2011


Parametric Amplification of Laser-Driven Electron Acceleration in Underdense Plasma
journal, April 2012


Universal scalings for laser acceleration of electrons in ion channels
journal, October 2016

  • Khudik, Vladimir; Arefiev, Alexey; Zhang, Xi
  • Physics of Plasmas, Vol. 23, Issue 10
  • DOI: 10.1063/1.4964901

Novel aspects of direct laser acceleration of relativistic electrons
journal, May 2015

  • Arefiev, A. V.; Robinson, A. P. L.; Khudik, V. N.
  • Journal of Plasma Physics, Vol. 81, Issue 4
  • DOI: 10.1017/S0022377815000434

Apollon-10P: Status and implementation
conference, January 2012

  • Chériaux, G.; Giambruno, F.; Fréneaux, A.
  • LIGHT AT EXTREME INTENSITIES 2011, AIP Conference Proceedings
  • DOI: 10.1063/1.4736764

Radiation-Reaction Trapping of Electrons in Extreme Laser Fields
journal, April 2014


Leveraging extreme laser-driven magnetic fields for gamma-ray generation and pair production
journal, March 2018

  • Jansen, O.; Wang, T.; Stark, D. J.
  • Plasma Physics and Controlled Fusion, Vol. 60, Issue 5
  • DOI: 10.1088/1361-6587/aab222

Motion of a Charged Particle in a Constant Magnetic Field and a Transverse Electromagnetic Wave Propagating along the Field
journal, July 1964


Energy gain of free electron in pulsed electromagnetic plane wave with constant external magnetic fields
journal, November 2009

  • Angus, Justin; Krasheninnikov, Sergei
  • Physics of Plasmas, Vol. 16, Issue 11
  • DOI: 10.1063/1.3259968

Interaction of Relativistic Particles and Free Electromagnetic Waves in the Presence of a Static Helical Magnet
journal, July 1972

  • Palmer, Robert B.
  • Journal of Applied Physics, Vol. 43, Issue 7
  • DOI: 10.1063/1.1661650

The effect of superluminal phase velocity on electron acceleration in a powerful electromagnetic wave
journal, August 2015

  • Robinson, A. P. L.; Arefiev, A. V.; Khudik, V. N.
  • Physics of Plasmas, Vol. 22, Issue 8
  • DOI: 10.1063/1.4928893

The unexpected role of evolving longitudinal electric fields in generating energetic electrons in relativistically transparent plasmas
journal, September 2018

  • Willingale, L.; Arefiev, A. V.; Williams, G. J.
  • New Journal of Physics, Vol. 20, Issue 9
  • DOI: 10.1088/1367-2630/aae034

Structured targets for detection of Megatesla-level magnetic fields through Faraday rotation of XFEL beams
journal, January 2019

  • Wang, T.; Toncian, T.; Wei, M. S.
  • Physics of Plasmas, Vol. 26, Issue 1
  • DOI: 10.1063/1.5066109

Radiation reaction as an energy enhancement mechanism for laser-irradiated electrons in a strong plasma magnetic field
journal, November 2019