Attenuation of Bragg backscattering of electromagnetic waves from density fluctuations near the region of polarization degeneracy in magnetoactive plasma

2016 ◽  
Vol 42 (8) ◽  
pp. 723-733 ◽  
Author(s):  
E. D. Gospodchikov ◽  
T. A. Khusainov ◽  
A. G. Shalashov
Keyword(s):  
Electromagnetic Waves ◽  
Magnetoactive Plasma ◽  
Density Fluctuations

Scattering of ordinary‐mode electromagnetic waves by density fluctuations in tokamaks

1993 ◽  
Vol 5 (12) ◽  
pp. 4299-4311 ◽  
Author(s):  
Gary R. Smith ◽  
Daniel R. Cook ◽  
Allan N. Kaufman ◽  
Arnold H. Kritz ◽  
Steven W. McDonald
Keyword(s):  
Electromagnetic Waves ◽  
Density Fluctuations ◽  
Ordinary Mode

Scattering of electromagnetic waves by anomalous fluctuations of a magnetized plasma

1990 ◽  
Vol 43 (2) ◽  
pp. 165-172 ◽  
Author(s):  
V. N. Pavlenko ◽  
V. G. Panchenko
Keyword(s):  
Cross Section ◽  
Electromagnetic Waves ◽  
Pump Wave ◽  
Density Fluctuations ◽  
Scattering Cross Section ◽  
Magnetized Plasma ◽  
Lower Hybrid ◽  
Scattering Cross ◽  
Parametric Decay ◽  
Ion Acoustic

Fluctuations and scattering of transverse electromagnetic waves by density fluctuations in a magnetized plasma in the presence of parametric decay of the pump wave are investigated. The spectral density of electron-density fluctuations is calculated. It is shown that the differential scattering cross-section has sharp maxima at the ion-acoustic and lower-hybrid frequencies when parametric decay of the lower-hybrid pump wave occurs. We note that scattering at the ion-acoustic frequency is dominant. When the pump-wave amplitude tends to the threshold strength of the electric field the scattering cross-section increases anomalously, i.e. there is critical opalescence.

Rayleigh surface waves along the boundary between a plasma and a metallic screen

1993 ◽  
Vol 49 (2) ◽  
pp. 227-235 ◽  
Author(s):  
S. T. Ivanov ◽  
K. M. Ivanova ◽  
E. G. Alexov
Keyword(s):  
Wave Propagation ◽  
Electromagnetic Wave ◽  
Surface Waves ◽  
Electromagnetic Waves ◽  
Electromagnetic Wave Propagation ◽  
Cyclotron Frequency ◽  
Plasma Frequency ◽  
Magnetoactive Plasma ◽  
Rayleigh Surface Waves ◽  
The Waves

Electromagnetic wave propagation along the interface between a magnetoactive plasma and a metallic screen is investigated analytically and numerically. It is shown that the waves have a Rayleigh character: they are superpositions of two partial waves. It is concluded that electromagnetic waves propagate only at frequencies lower than min (ωp, ωc), where ωpis the plasma frequency and ωcis the cyclotron frequency. The field topology is found, and the physical character of the waves is discussed.

Self-focusing of intense high frequency electromagnetic waves in a collisional magnetoactive plasma

2011 ◽  
Vol 18 (11) ◽  
pp. 112305 ◽  
Author(s):  
A. R. Niknam ◽  
A. Aliakbari ◽  
S. Majedi ◽  
F. Haji Mirzaei ◽  
M. Hashemzadeh
Keyword(s):  
High Frequency ◽  
Electromagnetic Waves ◽  
Magnetoactive Plasma ◽  
Self Focusing
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