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Self-focusing of cosh-Gaussian laser beam in a plasma with weakly relativistic and ponderomotive regime
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10.1063/1.3570663
/content/aip/journal/pop/18/3/10.1063/1.3570663
http://aip.metastore.ingenta.com/content/aip/journal/pop/18/3/10.1063/1.3570663
View: Figures

Figures

FIG. 1.

Variation of normalized beam width parameter with dimensionless distance of propagation when both relativistic and ponderomotive nonlinearities are taken into account for with the following set of parameters for the various values of : , , , , and intensity parameter, .

FIG. 2.

Variation of normalized beam width with dimensionless distance of propagation at for the same set of parameters as in the caption of Fig. 1.

FIG. 3.

Variation of normalized beam width with dimensionless distance of propagation at for the same set of parameters as in the caption of Fig. 1.

FIG. 4.

Variation of normalized beam width with dimensionless distance of propagation at , at varying values of intensity parameter for the same set of parameters as in the caption of Fig. 1. Solid curve corresponds to , dashed to , dotted to , and dot-dashed to .

FIG. 5.

Plot of longitudinal phase vs dimensionless distance of propagation at for the same set of parameters as mentioned in the caption of Fig. 1. Solid curve corresponds to , dashed to , and dotted to .

FIG. 6.

Plot of regularized phase vs dimensionless distance of propagation at for the same set of parameters as mentioned in the caption of Fig. 1. Solid curve corresponds to , dashed to , and dotted to .

FIG. 7.

Variation of the dimensionless initial beam width as a function of with and . Solid curve A corresponds to and dashed curve B to .

FIG. 8.

Variation of normalized beam width with dimensionless distance of propagation for the same set of parameters as in the caption of Fig. 1. Solid curve corresponds to Gaussian beam with , . Dashed curve corresponds to cosh-Gaussian beam with , .

FIG. 9.

Variation of normalized beam width with dimensionless distance of propagation for the same set of parameters as in the caption of Fig. 1. Solid curve corresponds to Gaussian beam with , . Dashed curve corresponds to cosh-Gaussian beam with , .

/content/aip/journal/pop/18/3/10.1063/1.3570663
2011-03-24
2014-04-17

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