Cyclotron instability of the slow extraordinary wave in a magnetoactive plasma

1987 ◽  
Vol 30 (6) ◽  
pp. 547-557 ◽  
Author(s):  
A. G. Demekhov
Keyword(s):  
Magnetoactive Plasma ◽  
Extraordinary Wave ◽  
Cyclotron Instability

scholarly journals Fundamental and second harmonic amplitudes in a collisional magnetoactive plasma

2003 ◽  
Vol 2 (5) ◽  
pp. 245-251 ◽  
Author(s):  
B.M. Jovanovic ◽  
Branimir Zivkovic
Keyword(s):  
Electromagnetic Wave ◽  
Nonlinear Equations ◽  
Theoretical Investigation ◽  
Second Harmonic ◽  
Magnetoactive Plasma ◽  
Frequency Doubling ◽  
Extraordinary Wave ◽  
Plasma Boundary ◽  
Magnetized Plasma ◽  
Ordinary Wave

We present a theoretical investigation of frequency doubling of electromagnetic wave in homogeneous, collisional and magnetized plasma. The coupled nonlinear equations for fundamental ordinary wave and second harmonic extraordinary wave have been solved. The amplitudes of these waves have been calculated for various values of collisional frequency and distance from the plasma boundary.

scholarly journals Numerical simulation of a slow extraordinary wave in magnetoactive plasma

2020 ◽  
pp. 420-439
Author(s):  
Е.В. Чижонков ◽  
А.А. Фролов
Keyword(s):  
Magnetic Field ◽  
Numerical Simulation ◽  
External Magnetic Field ◽  
Linear Problem ◽  
Initial Conditions ◽  
Fourier Method ◽  
Magnetoactive Plasma ◽  
Extraordinary Wave ◽  
Constant Field ◽  
Order Accuracy

Численно и аналитически исследовано влияние внешнего магнитного поля на плоские нерелятивистские нелинейные плазменные колебания. Для инициализации медленной необыкновенной волны в магнитоактивной плазме предложен способ построения недостающих начальных условий на основе решения линейной задачи методом Фурье. С целью численного моделирования нелинейной волны построена схема метода конечных разностей второго порядка точности типа МакКормака на основе эйлеровых переменных. Показано, что при учете внешнего магнитного поля ленгмюровские колебания трансформируются в медленную необыкновенную волну, энергия которой вибрирует при перемещении от начала координат. При этом скорость волны увеличивается с ростом внешнего постоянного поля, что способствует выносу энергии из первоначальной области локализации колебаний. The effect of an external magnetic field on plane non-relativistic nonlinear plasma oscillations is studied numerically and analytically. A method for the initialization a slow extraordinary wave in a magnetoactive plasma is proposed for constructing the missing initial conditions based on solving a linear problem using the Fourier method. For the purpose of numerical simulation of a nonlinear wave, a scheme of the second-order accuracy finite difference method of the MacCormack type based on Euler variables is constructed. It is shown that, when the external magnetic field is taken into account, the Langmuir oscillations are transformed into a slow extraordinary wave whose energy vibrates when moving from the origin. In this case, the wave velocity increases with the growth of the external constant field, which contributes to the removal of energy from the initial region of localization of oscillations.

Scattering and transformation of waves in a magnetoactive plasma

1966 ◽  
Vol 89 (6) ◽  
pp. 227-258 ◽  
Author(s):  
A.G. Sitenko ◽  
Yu.A. Kirochkin
Keyword(s):  
Magnetoactive Plasma
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