Enhanced nonlinear interaction of powerful electromagnetic waves with ionospheric plasma near the second electron gyroharmonic

2013 ◽  
Vol 20 (5) ◽  
pp. 052904 ◽  
Author(s):  
Ya. N. Istomin ◽  
T. B. Leyser
Keyword(s):  
Nonlinear Interaction ◽  
Electromagnetic Waves ◽  
Ionospheric Plasma

MUTUAL NONLINEAR INTERACTION OF A NUMBER OF ELECTROMAGNETIC WAVES IN A PLASMA

1963 ◽  
Vol 41 (10) ◽  
pp. 1702-1711 ◽  
Author(s):  
Mahendra Singh Sodha ◽  
Carl J. Palumbo
Keyword(s):  
Wave Equation ◽  
Electric Fields ◽  
Current Density ◽  
Nonlinear Interaction ◽  
Electromagnetic Waves ◽  
Physical Significance ◽  
Mutual Interaction ◽  
Modulated Waves ◽  
Boltzmann's Equation ◽  
Uniform Plasma

In this communication the authors have obtained an expression for current density in a slightly ionized uniform plasma in the presence of a number of electric fields of different frequencies by solving the appropriate Boltzmann's equation. This expression along with the wave equation has been used to investigate the nonlinear mutual interaction of a number of electromagnetic waves, propagating in a plasma. Limitations of the present analysis have also been indicated and the physical significance of the results has been discussed. The technique has also been applied to investigate the mutual interaction of amplitude-modulated waves, and the results express a generalization of Luxembourg effect to a number of strong modulated waves.

Novel features of electromagnetic waves in an isotropic degenerate electron-ion plasma

2021 ◽  
Author(s):  
P. Maryam ◽  
Rozina Chaudhary ◽  
Shahid Ali ◽  
Hassan Amir Shah ◽  
Stefaan Poedts
Keyword(s):  
Nonlinear Interaction ◽  
Electromagnetic Waves ◽  
Tunneling Effect ◽  
Fermi Velocity ◽  
Degenerate Electron ◽  
Linear Dispersion ◽  
Direct Function ◽  
Ion Plasma ◽  
Damping Rate ◽  
Electron Quantum

Abstract Within the framework of kinetic theory, the nonlinear interaction of electromagnetic waves (EMWs) with a degenerate electron-ion plasma is studied to account for the electron quantum mechanical effects. For this purpose, a specific quantum regime is considered, for which the degenerate electron Fermi velocity is assumed to be taken of the order of group velocity of EMWs. This eventually leads to the existence of nonlinear Landau damping rate for the EMWs in the presence of electron Ponderomotive force. The electrons-ion density oscillations may be arisen from the nonlinear interaction of EMWs, leading to a new type of nonlinear Schrödinger equation in terms of a complex amplitude for electromagnetic pump wave. The profiles of nonlinear damping rate reveal that EMWs become less damped for increasing the quantum tunnelling effects. The electrostatic response for the linear electrostatic waves is also investigated and derived a linear dispersion for the ion-acoustic damping rate. The latter is a direct function of electron Fermi speed and does not rely on the Bohm tunneling effect. The obtained results are numerically analyzed for the two microwaves of different harmonics in the context of nonrelativistic astrophysical dense plasma environments, e.g., white dwarfs, where the electron quantum corrections cannot be ignored.

Nonlinear interaction of intense electromagnetic waves with a magnetoactive electron-positron-ion plasma

2013 ◽  
Vol 20 (8) ◽  
pp. 082123 ◽  
Author(s):  
S. M. Khorashadizadeh ◽  
E. Rastbood ◽  
H. Zeinaddini Meymand ◽  
A. R. Niknam
Keyword(s):  
Nonlinear Interaction ◽  
Electromagnetic Waves ◽  
Ion Plasma ◽  
Electron Positron

scholarly journals Excitation of VLF quasi-electrostatic oscillations in the ionospheric plasma

1996 ◽  
Vol 14 (1) ◽  
pp. 27-32 ◽  
Author(s):  
B. Lundin ◽  
C. Krafft ◽  
G. Matthieussent ◽  
F. Jiricek ◽  
J. Shmilauer ◽  
...  
Keyword(s):  
Heat Flux ◽  
Electromagnetic Waves ◽  
Ionospheric Plasma ◽  
Electron Distribution Function ◽  
Collisionless Plasma ◽  
Sound Waves ◽  
Thermal Electron ◽  
Band Emission ◽  
Suprathermal Electrons ◽  
A Current

Abstract. A numerical solution of the dispersion equation for electromagnetic waves in a hot magnetized collisionless plasma has shown that, in a current-free ionospheric plasma, the distortion of the electron distribution function reproducing the downward flow of a thermal electron component and the compensating upward flow of the suprathermal electrons, which are responsible for the resulting heat flux, can destabilize quasi-electrostatic ion sound waves. The numerical analysis, performed with ion densities and electron temperature taken from the data recorded by the Interkosmos-24 (IK-24, Aktivny) satellite, is compared with a VLF spectrum registered at the same time on board. This spectrum shows a wide frequency band emission below the local ion plasma frequency. The direction of the electron heat flux inherent to the assumed model of VLF emission generation is discussed

Collisionless damping of ordinary electromagnetic waves in the ionospheric plasma with power spectrum of inhomogeneities

1991 ◽  
Vol 34 (3) ◽  
pp. 214-220
Author(s):  
A. G. Bronin ◽  
P. F. Denisenko ◽  
G. A. Zhbankov ◽  
N. A. Zabotin
Keyword(s):  
Power Spectrum ◽  
Electromagnetic Waves ◽  
Ionospheric Plasma

scholarly journals Evidence of <i>L</i>-mode electromagnetic wave pumping of ionospheric plasma near geomagnetic zenith

2018 ◽  
Vol 36 (1) ◽  
pp. 243-251 ◽  
Author(s):  
Thomas B. Leyser ◽  
H. Gordon James ◽  
Björn Gustavsson ◽  
Michael T. Rietveld
Keyword(s):  
Electromagnetic Waves ◽  
Ionospheric Plasma ◽  
Pump Wave ◽  
Topside Ionosphere ◽  
Mode Propagation ◽  
Pump Frequency ◽  
Density Peak ◽  
F Region ◽  
Left Handed ◽  
Magnetic Zenith

Abstract. The response of ionospheric plasma to pumping by powerful HF (high frequency) electromagnetic waves transmitted from the ground into the ionosphere is the strongest in the direction of geomagnetic zenith. We present experimental results from transmitting a left-handed circularly polarized HF beam from the EISCAT (European Incoherent SCATter association) Heating facility in magnetic zenith. The CASSIOPE (CAScade, Smallsat and IOnospheric Polar Explorer) spacecraft in the topside ionosphere above the F-region density peak detected transionospheric pump radiation, although the pump frequency was below the maximum ionospheric plasma frequency. The pump wave is deduced to arrive at CASSIOPE through L-mode propagation and associated double (O to Z, Z to O) conversion in pump-induced radio windows. L-mode propagation allows the pump wave to reach higher plasma densities and higher ionospheric altitudes than O-mode propagation so that a pump wave in the L-mode can facilitate excitation of upper hybrid phenomena localized in density depletions in a larger altitude range. L-mode propagation is therefore suggested to be important in explaining the magnetic zenith effect. Keywords. Space plasma physics (active perturbation experiments)

Sign in / Sign up

Export Citation Format

Share Document