Physical Review Accelerators and Beams (Oct 2024)

Coherent high-harmonic generation with laser-plasma beams

  • S. A. Antipov,
  • I. Agapov,
  • R. Brinkmann,
  • Á. Ferran Pousa,
  • A. Martinez de la Ossa,
  • E. A. Schneidmiller,
  • M. Thévenet

DOI
https://doi.org/10.1103/PhysRevAccelBeams.27.100704
Journal volume & issue
Vol. 27, no. 10
p. 100704

Abstract

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Active energy compression scheme is presently being investigated for future laser-plasma accelerators. This method enables generating laser-plasma accelerator electron beams with a small, ∼10^{-5}, relative slice energy spread. When modulated by a laser pulse, such beams can produce coherent radiation at very high, ∼100th harmonics of the modulation laser wavelength, which are hard to access by conventional techniques. The scheme has a potential of providing additional capabilities for future plasma-based facilities by generating stable, tunable, narrow-band radiation.