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Mutual focusing/defocusing of Gaussian electromagnetic beams in collisional plasmas
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10.1063/1.2197847
/content/aip/journal/pop/13/5/10.1063/1.2197847
http://aip.metastore.ingenta.com/content/aip/journal/pop/13/5/10.1063/1.2197847

Figures

Image of FIG. 1.
FIG. 1.

Critical curve for a collisional plasma: Dependence of on axial irradiance of the first beam , when the axial irradiance of the second beam (a) 0.0; (b) 0.1; (c) 1.0; and (d) 5.0; the plasma and beam parameters are , , and . The case corresponds to a collisional plasma, which is in thermal equilibrium in absence of the beams.

Image of FIG. 2.
FIG. 2.

Critical curve for a collisional plasma—another representation: Variation of the function of the first beam on the ratio of square of initial beamwidth of the two beam , when the axial irradiance of first beam (a) 0.1; (b) 1.0; (c) 2.0; (d) 5.0; (e) 10.0, and the axial irradiance of the second beam is . The case corresponds to a collisional plasma, which is in thermal equilibrium in absence of the beams.

Image of FIG. 3.
FIG. 3.

Dependence of beamwidth parameter (solid lines) and (dashed lines) on distance of propagation . The curve for corresponds to and (a) 0.0; (b) 1.0; (c) 5.0, and curves for correspond to and (d) 0.0; (e) 1.0; 5.0 (g); the other parameters are , , , (when one beam is much weaker than the other). The case corresponds to a collisional plasma, which is in thermal equilibrium in absence of the beams.

Image of FIG. 4.
FIG. 4.

Dependence of beamwidth parameter (solid lines) and (dashed lines) on distance of propagation . Different curves correspond to (a) and (c) , ; (b) and (d) ; other parameters are the same as for Fig. 3 (both beams have comparable axial irradiance). The case corresponds to a collisional plasma, which is in thermal equilibrium in absence of the beams.

Image of FIG. 5.
FIG. 5.

Critical curve for ionosphere: Dependence of in midlatitude daytime ionospheric plasma (at height ) on axial irradiance of the first beam , when the axial irradiance of the second beam (a) 0.0; (b) 5.0; (c) 10.0; (d) 15.0; the beam parameters are , , .

Image of FIG. 6.
FIG. 6.

Dependence of beamwidth parameter (solid lines) and (dashed lines) on distance of propagation . The curve for corresponds to , (a) 50.0; (b) 100.0 curves for correspond to , (c) 50.0; (d) 100.0. and the other parameters are the same as in Fig. 5.

Image of FIG. 7.
FIG. 7.

Dependence of beamwidth parameter (solid lines) and (dashed lines) on distance of propagation in inhomogeneous collisional plasma . The curves for correspond to and (a) 10.0; (b) 0.0; curves for correspond to and (c) 10.0; (d) 0.0. The other parameters are , , and . The case corresponds to a collisional plasma, which is in thermal equilibrium in absence of the beams.

Tables

Generic image for table
Table I.

Dependence of (in ) on height (in kilometers) for midlatitude daytime ionosphere.

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/content/aip/journal/pop/13/5/10.1063/1.2197847
2006-05-12
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Mutual focusing/defocusing of Gaussian electromagnetic beams in collisional plasmas
http://aip.metastore.ingenta.com/content/aip/journal/pop/13/5/10.1063/1.2197847
10.1063/1.2197847
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