Generation of high-field narrowband terahertz radiation by counterpropagating plasma wakefields

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15 Citations (Scopus)

Abstract

It is found that nonlinear interaction of plasma wakefields driven by counterpropagating laser or particle beams can efficiently generate high-power electromagnetic radiation at the second harmonic of the plasma frequency. Using a simple analytical theory and particle-in-cell simulations, we show that this phenomenon can be attractive for producing high-field (∼10 MV/cm) tunable terahertz radiation with a narrow line width. For laser drivers produced by existing petawatt-class systems, this nonlinear process opens the way to the generation of gigawatt, multi-millijoule terahertz pulses which are not presently available for any other generating schemes.

Original languageEnglish
Article number103106
Number of pages8
JournalPhysics of Plasmas
Volume24
Issue number10
DOIs
Publication statusPublished - 1 Oct 2017

Keywords

  • MAGNETIZED PLASMA
  • LITHIUM-NIOBATE
  • LASER-PULSES
  • AMPLIFIER
  • WAKES

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