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

Title: Strong surface magnetic field generation in relativistic short pulse laser–plasma interaction with an applied seed magnetic field

Journal Article · · New Journal of Physics

Abstract While plasma often behaves diamagnetically, we demonstrate that the laser irradiation of a thin opaque target with an embedded target-transverse seed magnetic fieldBseedcan trigger the generation of an order-of-magnitude stronger magnetic field with opposite sign at the target surface. Strong surface field generation occurs when the laser pulse is relativistically intense and results from the currents associated with the cyclotron rotation of laser-heated electrons transiting through the target and the compensating current of cold electrons. We derive a predictive scaling for this surface field generation,Bgen~ -2πBseedΔx/λ0(in the large spot size limit), where Δxis the target thickness andλ0is the laser wavelength, and conduct 1D and 2D particle-in-cell simulations to confirm its applicability over a wide range of conditions. We additionally demonstrate that both the seed and surface-generated magnetic fields can have a strong impact on application-relevant plasma dynamics, for example substantially altering the overall expansion and ion acceleration from aμm-thick laser-irradiated target with a kilotesla-level seed magnetic field.

Research Organization:
Univ. of California, San Diego, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
SC0018312
OSTI ID:
1852591
Journal Information:
New Journal of Physics, Vol. 22, Issue 11; ISSN 1367-2630
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English

References (38)

Fast ignition realization experiment with high-contrast kilo-joule peta-watt LFEX laser and strong external magnetic field journal May 2016
The design and performance of a transportable low-cost instrument for the generation and application of megagauss fields journal June 1997
Magnetic field generation in a laser-irradiated thin collisionless plasma target by return current electrons carrying orbital angular momentum journal July 2020
Threshold for electron heating by two electromagnetic waves journal December 1983
Inverse Faraday Effect with Linearly Polarized Laser Pulses journal July 2010
Megagauss Magnetic Field Generation and Plasma Jet Formation on Solid Targets Irradiated by an Ultraintense Picosecond Laser Pulse journal July 1998
Energy gain by laser-accelerated electrons in a strong magnetic field journal April 2020
Ultrafast probing of magnetic field growth inside a laser-driven solenoid journal March 2017
Dynamics of Self-Generated, Large Amplitude Magnetic Fields Following High-Intensity Laser Matter Interaction journal November 2012
Self-generated surface magnetic fields inhibit laser-driven sheath acceleration of high-energy protons journal January 2018
Kilotesla Magnetic Field due to a Capacitor-Coil Target Driven by High Power Laser journal January 2013
Maximizing magnetic field generation in high power laser–solid interactions journal January 2019
Integrated simulation of the generation and transport of proton beams from laser-target interaction journal June 2006
Laser-driven platform for generation and characterization of strong quasi-static magnetic fields journal August 2015
Observation of magnetic field generation via the Weibel instability in interpenetrating plasma flows journal January 2015
J×B heating by very intense laser light journal January 1985
Fast-ignition transport studies: Realistic electron source, integrated particle-in-cell and hydrodynamic modeling, imposed magnetic fields journal July 2012
Laser-Driven Magnetic-Flux Compression in High-Energy-Density Plasmas journal November 2009
Contemporary particle-in-cell approach to laser-plasma modelling journal September 2015
Stochastic Heating and Acceleration of Electrons in Colliding Laser Fields in Plasma journal January 2002
Computational modeling of proton acceleration with multi-picosecond and high energy, kilojoule, lasers journal August 2018
On the problems of relativistic laboratory astrophysics and fundamental physics with super powerful lasers journal January 2015
Absorption of ultra-intense laser pulses journal August 1992
Laser-driven proton scaling laws and new paths towards energy increase journal December 2005
Inverse Faraday effect and propagation of circularly polarized intense laser beams in plasmas journal August 1996
Magnetized fast isochoric laser heating for efficient creation of ultra-high-energy-density states journal September 2018
Proton Acceleration with High-Intensity Ultrahigh-Contrast Laser Pulses journal October 2007
Theory of fast electron transport for fast ignition journal April 2014
Turbulent amplification of magnetic fields in laboratory laser-produced shock waves journal June 2014
Megagauss magnetic field generation in single-turn coils: new frontiers for scientific experiments journal September 1999
A study of picosecond laser–solid interactions up to 10 19 W cm −2 journal February 1997
Nonlinear electron heating in ultrahigh-intensity-laser–plasma interaction journal January 1997
Laser-driven strong magnetostatic fields with applications to charged beam transport and magnetized high energy-density physics journal May 2018
Magnetic Reconnection between Colliding Magnetized Laser-Produced Plasma Plumes journal September 2014
Experimental platform for investigations of high-intensity laser plasma interactions in the magnetic field of a pulsed power generator journal March 2018
Not-so-resonant, resonant absorption journal July 1987
Ultrafast proton radiography of the magnetic fields generated by a laser-driven coil current journal April 2016
XSEDE: Accelerating Scientific Discovery journal September 2014

Similar Records

Strong surface magnetic field generation in relativistic short pulse laser–plasma interaction with an applied seed magnetic field
Journal Article · Wed Nov 11 00:00:00 EST 2020 · New Journal of Physics · OSTI ID:1852591

Sign reversal in magnetic field amplification by relativistic laser-driven microtube implosions
Journal Article · Mon Dec 14 00:00:00 EST 2020 · Applied Physics Letters · OSTI ID:1852591

Generation of megatesla magnetic fields by intense-laser-driven microtube implosions
Journal Article · Tue Oct 06 00:00:00 EDT 2020 · Scientific Reports · OSTI ID:1852591

Related Subjects