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Temporal Characterization of a Self-Modulated Laser Wakefield
Donald Umstadter Publications
  • S.P. Le Blanc, University of Michigan, Ann Arbor
  • M.C. Downer, University of Michigan, Ann Arbor
  • R. Wagner, University of Michigan, Ann Arbor
  • Shouyuan Chen, University of Michigan, Ann Arbor
  • Anatoly Maksimchuk, University of Michigan
  • G. Mourou, University of Michigan, Ann Arbor
  • Donald P. Umstadter, University of Nebraska-Lincoln
Date of this Version
12-30-1996
Disciplines
Comments

Published by American Physical Society. Physical Review Letters 77, 5381 (1996). http://prl.aps.org. Copyright © 1996 American Physical Society. Permission to use.

Abstract
The temporal envelope of plasma density oscillations in the wake of an intense (l∼4×1018 W/cm2, λ = 1 μm) laser pulse (400 fs) is measured using forward Thomson scattering from a copropagating, frequency-doubled probe pulse. The wakefield oscillations in a fully ionized helium plasma (ne = 3×1019 cm-3) are observed to reach maximum amplitude ( δne/ne∼0.1) 300 fs after the pump pulse. The wakefield growth ( 3.5 ps-1) and decay ( 1.9 ps-1) rates are consistent with the forward Raman scattering instability and Landau damping, respectively.
Citation Information
S.P. Le Blanc, M.C. Downer, R. Wagner, Shouyuan Chen, et al.. "Temporal Characterization of a Self-Modulated Laser Wakefield" (1996)
Available at: http://works.bepress.com/donald_umstadter/84/