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Quasitransient backward Raman amplification of powerful laser pulses in dense plasmas with multicharged ions
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10.1063/1.3460347
/content/aip/journal/pop/17/7/10.1063/1.3460347
http://aip.metastore.ingenta.com/content/aip/journal/pop/17/7/10.1063/1.3460347
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

The shortest laser wavelength for QBRA (solid line) and transient BRA (dashed line) regimes in plasmas with ion charge .

Image of FIG. 2.
FIG. 2.

Lines , for several values of (solid lines), and lines where the linear Landau damping exceeds the linear Raman rate by 3 (dash-dotted line), or 20 (dashed line) times. The efficient QBRA is not affected by even the unsuppressed linear Landau damping in the regions above the dashed lines, for intense seed pulses, or dash-dotted lines, for less intense seed pulses.

Image of FIG. 3.
FIG. 3.

Dependence of the parameter of the pump wavelength , at the lower boundary of the region (25), , for several values of plasma ion charge . The curves are calculated for , but are in fact nearly the same for all ’s within the efficient QBRA range.

Image of FIG. 4.
FIG. 4.

Electron temperature-concentration regions of efficient QBRA of infrared, , and ultraviolet, wavelength, laser pulses in plasmas with ion charges ; 6 and 14 (H, C, and Si plasmas). Lines where the linear Landau damping exceeds the linear Raman rate by 3 (dash-dotted line), or 20 (dashed line) times. Note that the dashed lines are nearly absent in these regions, which indicates that, for intense enough laser seeds, the efficient QBRA regimes are not affected by even the unsuppressed linear Landau damping.

Image of FIG. 5.
FIG. 5.

Electron temperature-concentration regions of efficient QBRA of x-ray, and wavelength, laser pulses in plasmas with ion charges , 3, 4, 6, and 14. Lines where the linear Landau damping exceeds the linear Raman rate by three (dash-dotted line), or 20 (dashed line) times. Note that the dashed lines are nearly absent in these regions, which indicates that, for intense enough laser seeds, the efficient QBRA regimes are not affected by even the unsuppressed linear Landau damping.

Image of FIG. 6.
FIG. 6.

Electron temperature-concentration region of efficient QBRA of NIF micron wavelength laser pulses in plasmas with ion charge . The dash-dotted line shows where the linear Landau damping exceeds the linear Raman rate by three times; above this line the damping is even smaller.

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/content/aip/journal/pop/17/7/10.1063/1.3460347
2010-07-27
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Quasitransient backward Raman amplification of powerful laser pulses in dense plasmas with multicharged ions
http://aip.metastore.ingenta.com/content/aip/journal/pop/17/7/10.1063/1.3460347
10.1063/1.3460347
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