Phys. Rev. Lett. 69, 442–445 (1992)Strongly coupled stimulated Raman backscatter from subpicosecond laser-plasma interactionsReceived 24 April 1992; published in the issue dated 20 July 1992 We have observed strongly coupled stimulated Raman backscatter from the interaction of an intense, subpicosecond laser with an underdense plasma. The strongly coupled backscatter spectra have widths greater than the plasma frequency, extend to the blue side of the laser frequency, and at the highest densities, are shifted by less than ωp. These observations are consistent with the predictions of a strongly coupled Raman theory, appropriately modified for short laser pulses. © 1992 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.69.442
DOI:
10.1103/PhysRevLett.69.442
PACS:
52.35.Mw, 52.40.Nk, 52.50.Jm
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