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Title: Leveraging extreme laser-driven magnetic fields for gamma-ray generation and pair production

Journal Article · · Plasma Physics and Controlled Fusion
ORCiD logo [1];  [1];  [2];  [3];  [4]; ORCiD logo [1]
  1. Univ. of California, San Diego, CA (United States). Dept. of Mechanical and Aerospace Engineering. Center for Energy Research
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. CNRS and CEA and Univ. of Bordeaux (France). Center for Intense Lasers and Applications (CELIA)
  4. Helmholtz-Zentrum Dresden-Rossendorf, Dresden (Germany). Inst. for Radiation Physics

In this paper, the ability of an intense laser pulse to propagate in a classically over-critical plasma through the phenomenon of relativistic transparency is shown to facilitate the generation of strong plasma magnetic fields. Particle-in-cell simulations demonstrate that these fields significantly enhance the radiation rates of the laser-irradiated electrons, and furthermore they collimate the emission so that a directed and dense beam of multi-MeV gamma-rays is achievable. This capability can be exploited for electron–positron pair production via the linear Breit–Wheeler process by colliding two such dense beams. Finally, presented simulations show that more than 103 pairs can be produced in such a setup, and the directionality of the positrons can be controlled by the angle of incidence between the beams.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Univ. of California, San Diego, CA (United States)
Sponsoring Organization:
USDOE; National Science Foundation (NSF); US Air Force Office of Scientific Research (AFOSR); Engineering and Physical Sciences Research Council (EPSRC)
Grant/Contract Number:
AC52-06NA25396; 1632777; ACI-1548562; FA9550-17-1-0382; EP/G054940/1; EP/G055165/1; EP/G056803/1
OSTI ID:
1463499
Report Number(s):
LA-UR-18-21518; TRN: US1902309
Journal Information:
Plasma Physics and Controlled Fusion, Vol. 60, Issue 5; ISSN 0741-3335
Publisher:
IOP ScienceCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 35 works
Citation information provided by
Web of Science

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Cited By (18)

Axion-like-particle decay in strong electromagnetic backgrounds journal December 2019
Radiation reaction as an energy enhancement mechanism for laser-irradiated electrons in a strong plasma magnetic field journal November 2019
Harnessing the relativistic Buneman instability for laser-ion acceleration in the transparency regime journal June 2018
High power gamma flare generation in multi-petawatt laser interaction with tailored targets journal December 2018
Structured targets for detection of Megatesla-level magnetic fields through Faraday rotation of XFEL beams journal January 2019
Ion acceleration in laser generated megatesla magnetic vortex journal October 2019
Gamma photons and electron-positron pairs from ultra-intense laser-matter interaction: A comparative study of proposed configurations journal November 2019
All-optical generation of petawatt gamma radiation via inverse Compton scattering from laser interaction with tube target journal June 2019
Impact of ion dynamics on laser-driven electron acceleration and gamma-ray emission in structured targets at ultra-high laser intensities journal June 2019
Multi-stage scheme for nonlinear Breit–Wheeler pair-production utilising ultra-intense laser-solid interactions journal July 2019
The unexpected role of evolving longitudinal electric fields in generating energetic electrons in relativistically transparent plasmas journal September 2018
Creation of Electron-Positron Pairs in Photon-Photon Collisions Driven by 10-PW Laser Pulses journal January 2019
Laser-Particle Collider for Multi-GeV Photon Production journal June 2019
Ion Acceleration in Laser Generated Mega Tesla Magnetic Vortex text January 2019
The Unexpected Role of Evolving Longitudinal Electric Fields in Generating Energetic Electrons in Relativistically Transparent Plasmas text January 2018
Impact of ion dynamics on laser-driven electron acceleration and gamma-ray emission in structured targets at ultra-high laser intensities text January 2019
Axion-like-particle decay in strong electromagnetic backgrounds text January 2019
Forward sliding-swing acceleration: electron acceleration by high-intensity lasers in strong plasma magnetic fields text January 2018

Figures / Tables (11)