Temporal characterization of a self-modulated laser wakefield accelerator

S. P. Le Blanc, M. C. Downer, R. Wagner, S. Y. Chen, A. Maksimchuk, G. Mourou, D. Umstadter

Research output: Contribution to journalConference article

Abstract

A femtosecond pump-probe experiment based on forward, collective Thomson scattering for characterization of the amplitude, growth and decay rate of a self-modulated laser wakefield accelerator (SM-LWFA) is demonstrated. By measuring Thomson scattering from the probe pulse as a function of the delay between the pump and probe, the temporal envelope of the wakefield oscillations is recorded. The measured exponential rise time of the wakefield is in agreement with that expected from the growth of the forward Raman scattering (FRS) instability. Since the total energy in the plasma wave, the measured exponential decay rate of the wakefield is consistent with nonlinear Landau damping of trapped electrons or beam loading of the plasma wave.

Original languageEnglish (US)
Pages (from-to)313
Number of pages1
JournalConference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS
Volume11
StatePublished - 1997
EventProceedings of the 1997 Conference on Lasers and Electro-Optics, CLEO - Baltimore, MD, USA
Duration: May 18 1997May 23 1997

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Temporal characterization of a self-modulated laser wakefield accelerator'. Together they form a unique fingerprint.

Cite this