Time-domain measurement of a self-amplified spontaneous emission free-electron laser with an energy-chirped electron beam and undulator tapering

Abstract

We report, with an unequivocal time-domain measurement, that an appropriately chosen undulator taper can compensate for an electron beam longitudinal energy-chirp in a free-electron laser amplifier, leading to the generation of single-spike radiation close to the Fourier limit. The measurements were taken using the frequency-resolved optical gating technique by employing an advanced transient-grating diagnostic geometry. The reconstructed longitudinal radiation characteristics are compared in detail to prediction from time-dependent three-dimensional simulations.

Document Details

Document Type
Pub Defense Publication
Publication Date
Sep 24, 2012
Source ID
10.1063/1.4754612

Entities

People

  • A. Bacci
  • A. Cianchi
  • A. Mostacci
  • A. Petralia
  • A. R. Rossi
  • D. Filippetto
  • E. Chiadroni
  • F. Ciocci
  • G. Di Pirro
  • G. Gatti
  • G. Marcus
  • J. B. Rosenzweig
  • J. V. Rau
  • L. Giannessi
  • M. Artioli
  • M. Bellaveglia
  • M. Del Franco
  • M. Ferrario
  • M. Labat
  • M. Quattromini
  • V. Petrillo

Organizations

  • Office of Naval Research
  • Sapienza University of Rome
  • Tor Vergata University of Rome
  • United States Department of Energy
  • University of California, Los Angeles
  • University of Milan

Tags

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Pulsed Power and Plasma Physics.

Technology Areas

  • Directed Energy
  • Microelectronics