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Control of stimulated Raman scattering in a steep density gradient plasma
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View: Figures


Image of FIG. 1.
FIG. 1.

Layout of the experiment showing the gasbag, heater beams, interaction beams, and primary diagnostics.

Image of FIG. 2.
FIG. 2.

The series of time resolved spectra with time-history lineouts and spectral lineouts show the effect of decreasing intensity on the SRS for a 13% critical plasma density. (a) , (b) , and (c) . (d) Simulation of the SRS spectra using SRS gain calculated from HYDRA simulations for . The effect of increasing laser smoothing at a fixed incident intensity of and density of about 15% critical is shown in the last four spectra. (e) DPP only, (f) , (g) bandwidth, and (h) .

Image of FIG. 3.
FIG. 3.

SRS scattered power at 1.3 ns in the plasma blowoff region as a function of (a) increasing intensity and (b) added smoothing. The points indicate data or simulation results. The curves represent trends to the data.

Image of FIG. 4.
FIG. 4.

(a) HYDRA density and temperature profiles at 0.8 and 1.3 ns show the blowoff plasma, the blast wave, and the slight variation in plateau density. (b) The SRS gain is shown using the variable color scale for the plasma parameters calculated at 0.8 and 1.3 ns.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Control of 2ω(527 nm) stimulated Raman scattering in a steep density gradient plasma