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Open Access Publications from the University of California

Controlling the spectral shape of nonlinear Thomson scattering with proper laser chirping

  • Author(s): Rykovanov, SG
  • Geddes, CGR
  • Schroeder, CB
  • Esarey, E
  • Leemans, WP
  • et al.

© 2016, American Physical Society. All rights reserved. Effects of nonlinearity in Thomson scattering of a high intensity laser pulse from electrons are analyzed. Analytic expressions for laser pulse shaping in frequency (chirping) are obtained which control spectrum broadening for high laser pulse intensities. These analytic solutions allow prediction of the spectral form and required laser parameters to avoid broadening. Results of analytical and numerical calculations agree well. The control over the scattered radiation bandwidth allows narrow bandwidth sources to be produced using high scattering intensities, which in turn greatly improves scattering yield for future x- and gamma-ray sources.

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