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Experimental investigation of the stimulated Brillouin scattering growth and saturation at 526 and 351 nm for direct drive and shock ignition
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10.1063/1.3677256
/content/aip/journal/pop/19/1/10.1063/1.3677256
http://aip.metastore.ingenta.com/content/aip/journal/pop/19/1/10.1063/1.3677256
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Experimental set-up and timing of the two beams.

Image of FIG. 2.
FIG. 2.

(Color online) Hydrodynamics profiles of the plasma along the laser axis at the beginning of the interaction beam (t = 1.5 ns) as given by hydrodynamics simulations for the 2 and 3ω experiments (a) electron temperature profiles, (b) electron density profiles, (c) expansion velocity profiles, and (d) corresponding SBS shift.

Image of FIG. 3.
FIG. 3.

(Color online) Time-resolved SBS spectra measured in the (a) 3ω and (b) 2ω experiments at the threshold intensities.

Image of FIG. 4.
FIG. 4.

(Color online) Time-resolved SBS spectra measured in the RPP experiment (left) and corresponding SBS gain as given by PIRANAH (right).

Image of FIG. 5.
FIG. 5.

(Color online) SBS reflectivities as a function of time measured in the 2ω RPP experiment for different interaction beam intensities (left) and corresponding maximum instantaneous SBS reflectivities as a function of intensity (right).

Image of FIG. 6.
FIG. 6.

(Color online) Time-integrated SBS reflectivities measured at 2 and 3ω as a function of the laser intensity: (a) direct backscattering measurements and (b) near backscattering measurements.

Image of FIG. 7.
FIG. 7.

(Color online) SBS reflectivities as a function of the interaction beam intensity given by HERA compared to the measurements in the experiment at 2ω.

Image of FIG. 8.
FIG. 8.

(Color online) Representation of the parameters P/Pc and α as defined in the main text in the 3ω (a) and 2ω (b) experiments.

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/content/aip/journal/pop/19/1/10.1063/1.3677256
2012-01-24
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Experimental investigation of the stimulated Brillouin scattering growth and saturation at 526 and 351 nm for direct drive and shock ignition
http://aip.metastore.ingenta.com/content/aip/journal/pop/19/1/10.1063/1.3677256
10.1063/1.3677256
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