Excitation and damping of a self-modulated laser wakefield

S. Y. Chen, M. Krishnan, A. Maksimchuk, D. Umstadter

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Spatially, temporally, and angularly resolved collinear collective Thomson scattering was used to diagnose the excitation and damping of a relativistic-phase-velocity self-modulated laser wakefield. The excitation of the electron plasma wave was observed to be driven by Raman-type instabilities. The damping is believed to originate from both electron beam loading and modulational instability. The collective Thomson scattering of a probe pulse from the ion acoustic waves, resulting from modulational instability, allows us to measure the temporal evolution of the plasma temperature. The latter was found to be consistent with the damping of the electron plasma wave.

Original languageEnglish (US)
Pages (from-to)403-413
Number of pages11
JournalPhysics of Plasmas
Volume7
Issue number1
DOIs
StatePublished - Jan 2000

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Thomson scattering
damping
plasma waves
electron plasma
relativistic velocity
excitation
lasers
ion acoustic waves
plasma temperature
phase velocity
electron beams
probes
pulses

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Excitation and damping of a self-modulated laser wakefield. / Chen, S. Y.; Krishnan, M.; Maksimchuk, A.; Umstadter, D.

In: Physics of Plasmas, Vol. 7, No. 1, 01.2000, p. 403-413.

Research output: Contribution to journalArticle

Chen, S. Y. ; Krishnan, M. ; Maksimchuk, A. ; Umstadter, D. / Excitation and damping of a self-modulated laser wakefield. In: Physics of Plasmas. 2000 ; Vol. 7, No. 1. pp. 403-413.
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