Amplification of ion acoustic wave in an inhomogeneous plasma through nonlinear wave-particle interaction with drift wave turbulence

2011 ◽  
Vol 18 (4) ◽  
pp. 042311 ◽  
Author(s):  
P. N. Deka ◽  
A. Borgohain
Keyword(s):  
Acoustic Wave ◽  
Nonlinear Wave ◽  
Inhomogeneous Plasma ◽  
Particle Interaction ◽  
Wave Turbulence ◽  
Ion Acoustic Wave ◽  
Wave Particle Interaction ◽  
Drift Wave Turbulence ◽  
Drift Wave ◽  
Ion Acoustic

On unstable electromagnetic radiation through nonlinear wave–particle interactions in presence of drift wave turbulence

2012 ◽  
Vol 78 (5) ◽  
pp. 515-524 ◽  
Author(s):  
P. N. DEKA ◽  
A. BORGOHAIN
Keyword(s):  
Electromagnetic Radiation ◽  
Nonlinear Wave ◽  
Inhomogeneous Plasma ◽  
Wave Turbulence ◽  
Particle Interactions ◽  
Drift Wave Turbulence ◽  
Drift Wave ◽  
Nonlinear Dispersion Relation ◽  
The Common ◽  
Wave Particle Interactions

AbstractA study on the generation of unstable electromagnetic wave through nonlinear wave–particle interactions in an inhomogeneous plasma has been presented. Drift wave turbulence, which is one of the common features of inhomogeneous plasma, is found to be strongly in phase relation with thermal particles. The plasma particles, accelerated by drift wave turbulence field, may transfer their energy to electromagnetic O-mode through a modulated field. This process has been described by Vlasov Maxwell system of equations. From the nonlinear dispersion relation for O-mode the growth rate has been estimated. It has been observed that growth of unstable O-mode may predict magnetospheric electromagnetic radiation phenomena.

Propagation of a Coherent Ion Acoustic Wave through Ion Wave Turbulence

1976 ◽  
Vol 41 (3) ◽  
pp. 1021-1028 ◽  
Author(s):  
Takumi Yamamoto ◽  
Yukihiro Nishio ◽  
Takashige Tsukishima
Keyword(s):  
Acoustic Wave ◽  
Wave Turbulence ◽  
Ion Acoustic Wave ◽  
Ion Acoustic

Ion Acoustic Wave Streamers Excited by a Resonantly Signal Biased Mesh Antenna in an Inhomogeneous Plasma

2011 ◽  
Vol 39 (10) ◽  
pp. 1927-1934
Author(s):  
Md. Kamal-Al-Hassan ◽  
Mikhail Starodubtsev ◽  
Hitendra K. Malik ◽  
Noboru Yugami ◽  
Yasushi Nishida
Keyword(s):  
Acoustic Wave ◽  
Inhomogeneous Plasma ◽  
Ion Acoustic Wave ◽  
Ion Acoustic

Energy transfer equation and universal spectrum of ion–acoustic wave turbulence

1974 ◽  
Vol 12 (3) ◽  
pp. 381-393 ◽  
Author(s):  
Toshiki Tajima ◽  
Setsuo Ichimaru ◽  
Tohru Nakano
Keyword(s):  
Energy Transfer ◽  
Acoustic Wave ◽  
Transfer Equation ◽  
Wave Turbulence ◽  
Turbulence Energy ◽  
Ion Acoustic Wave ◽  
Turbulent Fluctuations ◽  
Diffusive Flow ◽  
Ion Acoustic ◽  
Universal Spectrum

The energy transfer equation in wavenumber space of ion–acoustic wave turbulence is obtained through investigation of the effects of turbulent fluctuations on the propagator of a test wave in the plasma. Those turbulent fluctuations whose wavelengths are shorter than that of the test wave give rise to collisional effects, while those with longer wavelengths act to deform continuously the shape of the test wave, thereby producing a diffusive flow of the turbulence energy in k space. Dimensional analysis, coupled with the Kolmogorov hypothesis, is then carried out on the resulting equation; a universal spectrum proportional to in the large k subdivision and to k−4 in the small k subdivision of the inertial domain is thus obtained.

Collisional drift waves in the presences of coherent ion acoustic or Langmuir waves

1971 ◽  
Vol 6 (3) ◽  
pp. 527-540 ◽  
Author(s):  
M. Dobrowolny ◽  
P. Negrini
Keyword(s):  
Acoustic Wave ◽  
Wave Spectrum ◽  
Langmuir Wave ◽  
Drift Waves ◽  
Langmuir Waves ◽  
Ion Acoustic Wave ◽  
Linear Interaction ◽  
Drift Wave ◽  
Ion Acoustic ◽  
The Stability

The dispersion properties of drift waves in a low β weakly collisional plasma, in the presence of ion acoustic or Langmuir waves parallel to magnetic lines, are investigated. It is shown that the non-linear interaction with an ion acoustic wave mainly leads to a shift of the drift wave spectrum towards lower frequencies (and only under very particular conditions affects the stability of the drift wave). The interaction with a Langmuir wave, on the contrary, yields a contribution to the imaginary part of the frequency. The conditions under which this stabilizes unstable drift modes are derived and discussed.

Drift wave turbulence of a radially inhomogeneous plasma

1991 ◽  
Vol 157 (2-3) ◽  
pp. 141-145 ◽  
Author(s):  
D.V. Chibisov ◽  
V.S. Mikhailenko ◽  
K.N. Stepanov
Keyword(s):  
Inhomogeneous Plasma ◽  
Wave Turbulence ◽  
Drift Wave Turbulence ◽  
Drift Wave ◽  
Radially Inhomogeneous
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