Control of 2ω (527 nm) stimulated Raman scattering in a steep density gradient plasma

Moody, J. D.; Divol, L.; Froula, D. H.; Glenzer, S. H.; Gregori, G.; Kirkwood, R. K.; Mackinnon, A.; Meezan, N.; Niemann, C.; Suter, L. J.; Bahr, R.; Seka, W.
June 2009
Physics of Plasmas;Jun2009, Vol. 16 Issue 6, p062704
Academic Journal
Experiments show that application of laser smoothing schemes including smoothing by spectral dispersion and polarization smoothing effectively suppresses stimulated Raman scattering from a 2ω (527 nm) laser beam in a low average-gain plasma with a steep density gradient. Full-wave simulations reproduce the observed trends in the data and show that the scattering reduction is an indirect result of suppressing active filamentation.


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