In this paper, we present, for the first time, clear evidence of reaching the nonlinear regime of Raman Backscattering (RBS) amplification with pulse intensity amplification exciting 1000 in 2 mm long plasma and exciting pump intensity by more than order of magnitude. We have demonstrated energy amplification of up to /spl sim/5000 for a seed with a low input energy (<0.2 pJ) and up to /spl sim/60 for a seed with high input energy (7.5 pJ). The output energy grew exponentially when the input was low and the gain indicated "saturation" when the input was high.


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    Title :

    Reaching nonlinear regime in Raman amplification of ultrashort laser pulses


    Contributors:
    Cheng, W. (author) / Avitzour, Y. (author) / Ping, Y. (author) / Suckewer, S. (author) / Fisch, N.J. (author) / Hur, M.S. (author) / Wurtele, J.S. (author)


    Publication date :

    2005-01-01


    Size :

    1803975 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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