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Raman amplification in plasma: Wavebreaking and heating effects
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10.1063/1.3492713
/content/aip/journal/pop/17/11/10.1063/1.3492713
http://aip.metastore.ingenta.com/content/aip/journal/pop/17/11/10.1063/1.3492713

Figures

Image of FIG. 1.
FIG. 1.

Benchmarking of cold model against VORPAL for cold plasma, showing snapshots of intensity. Parameters as shown in Table I, except where stated. (a) Pump depletion regime. (b) Chirped pump regime, . (c) Wavebreaking, .

Image of FIG. 2.
FIG. 2.

Benchmarking of the thermal model against VORPAL for warm plasma, showing snapshots of intensity. Parameters as shown in Table I, except where stated. Inverse bremsstrahlung is disabled to allow direct comparison. (a) Temperature is 50 eV and . (b) Temperature is 50 eV, , and .

Image of FIG. 3.
FIG. 3.

Snapshot of intensity for thermal effects fluid model [parameters as for Fig. 1(a), shown in Table I]. Note the difference in propagation distance.

Image of FIG. 4.
FIG. 4.

Comparison of peak output intensity for cold and thermal models. (a) Varying detuning. (b) Varying pump chirp (probe wavelength chosen to give highest intensity). Other simulation parameters are as shown in Table I.

Image of FIG. 5.
FIG. 5.

Peak amplified probe intensity for varying plasma density. Comparison between cold and thermal models with initial plasma temperatures of 5 and 50 eV. Probe wavelength chosen for peak intensity. Other parameters as shown in Table I.

Image of FIG. 6.
FIG. 6.

Peak amplified probe intensity for varying plasma density. Comparison between cold and thermal models, with and without wavebreaking. Dotted lines show intensity reached if wavebreaking is not taken in to account. (a) Pump intensity is . (b) Pump intensity is . Probe wavelength chosen for peak intensity. Other parameters as shown in Table I.

Image of FIG. 7.
FIG. 7.

Peak amplified probe intensity for varying pump intensity. Comparison between cold and thermal models with initial temperatures of 5 and 50 eV. Plasma densities of (a) and (b) . Probe wavelength chosen to give highest intensity. Other parameters are shown in Table I.

Tables

Generic image for table
Table I.

Typical parameters used for simulations.

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/content/aip/journal/pop/17/11/10.1063/1.3492713
2010-11-05
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Raman amplification in plasma: Wavebreaking and heating effects
http://aip.metastore.ingenta.com/content/aip/journal/pop/17/11/10.1063/1.3492713
10.1063/1.3492713
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