Strong plasma wave excitation by a "chirped" laser beat wave

M. Deutsch*, B. Meerson, J. E. Golub

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

45 Scopus citations


A modification of the plasma beat-wave excitation scheme is proposed, aimed at a significant increase of the resulting plasma wave amplitude. The modification employs two laser beams with a down-chirped beat frequency that follows, on the average, the amplitude-dependent frequency of the intense plasma wave. Numerical and analytical calculations that support the proposed scheme are presented. Also, new analytical solutions for the constant beat-frequency case are obtained. Finally, a plausible experimental setup is suggested, where one of two CO2 laser beams attains the necessary frequency chirp by passing through a diffraction grating pair.

Original languageAmerican English
Pages (from-to)1773-1780
Number of pages8
JournalPhysics of Fluids B
Issue number7
StatePublished - 1991


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