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

Title: Kilo-Tesla axial magnetic field generation with high intensity spin and orbital angular momentum beams

Journal Article · · Physical Review Research

Absorption of angular momentum from a high intensity laser pulse can lead to the generation of strong axial magnetic fields in plasma. The effect, known as the inverse Faraday effect, can generate kilo-Tesla strength, multipicosecond, axial magnetic fields extending over hundreds of microns in underdense plasma. In this paper we explore the effect with ultrahigh intensity circularly polarized Gaussian beams and linearly polarized orbital angular momentum beams comparing analytic expressions with three-dimensional particle-in-cell simulations. We develop a model for the transverse magnetic field profiles, introduce a model for the temporal decay, and show that while the magnetic field strength is independent of plasma density, it has a strong dependence on the laser beam waist.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE; National Science and Engineering Research Council of Canada; United Kingdom Engineering and Physical Sciences Research Council
Grant/Contract Number:
AC52-07NA27344; RGPIN-2019-05013; EP/G054950/1; EP/G056803/1; EP/G055165/1; EP/M022463/1
OSTI ID:
1835629
Alternate ID(s):
OSTI ID: 1843563
Report Number(s):
LLNL-JRNL-826556; PPRHAI; 043180
Journal Information:
Physical Review Research, Journal Name: Physical Review Research Vol. 3 Journal Issue: 4; ISSN 2643-1564
Publisher:
American Physical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (28)

Ultra-intense laser pulse characterization using ponderomotive electron scattering journal December 2019
Inverse Faraday Effect in a Plasma journal November 1970
Generation of Ultrarelativistic Monoenergetic Electron Bunches via a Synergistic Interaction of Longitudinal Electric and Magnetic Fields of a Twisted Laser journal June 2021
Numerical study of momentum and energy transfer in the interaction of a laser pulse carrying orbital angular momentum with electrons journal November 2020
Inverse Faraday Effect with Linearly Polarized Laser Pulses journal July 2010
Inverse Faraday effect and propagation of circularly polarized intense laser beams in plasmas journal August 1996
Gain of electron orbital angular momentum in a direct laser acceleration process journal May 2020
Plasma solenoid driven by a laser beam carrying an orbital angular momentum journal September 2018
Axial magnetic field generation by intense circularly polarized laser pulses in underdense plasmas journal August 2010
Measurements of Inverse Faraday Effect and Absorption of Circularly Polarized Laser Light in Plasmas journal March 1997
Orbital angular momentum of light and the transformation of Laguerre-Gaussian laser modes journal June 1992
Generating multi-GeV electron bunches using single stage laser wakefield acceleration in a 3D nonlinear regime journal June 2007
Optimal Laguerre–Gaussian modes for high-intensity optical vortices journal January 2020
Generation of a microelectron beam by an intense short pulse laser in the TEM(1, 0) + TEM(0, 1) mode in vacuum journal May 2005
Magetostatic amplifier with tunable maximum by twisted-light plasma interactions journal August 2017
Measurements of the Inverse Faraday Effect from Relativistic Laser Interactions with an Underdense Plasma journal November 2001
Contemporary particle-in-cell approach to laser-plasma modelling journal September 2015
Orbital angular momentum and nonparaxial light beams journal September 1994
Rotational instabilities in a theta pinch journal January 1978
Plasma rotation with circularly polarized laser pulse journal November 2015
Off-axis spiral phase mirrors for generating high-intensity optical vortices journal January 2020
Excitation of magnetic fields by a circularly polarized laser pulse in a plasma channel journal August 2004
Magnetic field generation by short ultraintense laser pulse in underdense plasmas journal March 1996
GigaGauss solenoidal magnetic field inside bubbles excited in under-dense plasma journal October 2016
The evolution of ultra‐intense, short‐pulse lasers in underdense plasmas journal May 1996
Mode conversion efficiency to Laguerre-Gaussian OAM modes using spiral phase optics journal January 2017
Direct electron bunch acceleration by Laguerre–Gauss laser pulse journal September 2020
Magnetic Field Generation in Plasma Waves Driven by Copropagating Intense Twisted Lasers journal October 2018