Radiative trapping in intense laser beams

May 3, 2016
19 pages
Published in:
  • Plasma Phys.Control.Fusion 58 (2016) 085005
e-Print:

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Abstract: (arXiv)
The dynamics of electrons in counter-propagating, circularly polarized laser beams are shown to exhibit attractors whose ability to trap particles depends on the ratio of the beam intensities and a single parameter describing radiation reaction. Analytical expressions are found for the underlying limit cycles and the parameter range in which they are stable. In high-intensity optical pulses, where radiation reaction strongly modifies the trajectories, the production of collimated gamma-rays and the initiation of non-linear cascades of electron-positron pairs can be optimized by a suitable choice of the intensity ratio.
Note:
  • Minor revision in response to referee report
  • 12.20.-m
  • 52.27.Ep
  • 52.38.Ph
  • radiative capture
  • laser: beam
  • polarized beam
  • attractor
  • electron: pair production
  • collimator
  • gamma ray