Parametric excitation of an ion-acoustic wave by an electron-cyclotron wave

1986 ◽  
Vol 29 (10) ◽  
pp. 3490 ◽  
Author(s):  
Kyoko Matsuda
Keyword(s):  
Acoustic Wave ◽  
Parametric Excitation ◽  
Electron Cyclotron ◽  
Ion Acoustic Wave ◽  
Ion Acoustic ◽  
Electron Cyclotron Wave

Theory of double resonance parametric excitation in plasmas. Part 2

1980 ◽  
Vol 24 (2) ◽  
pp. 315-340 ◽  
Author(s):  
Burton D. Fried ◽  
Allen Adler ◽  
Robert Bingham
Keyword(s):  
Acoustic Wave ◽  
Parametric Excitation ◽  
Double Resonance ◽  
Langmuir Wave ◽  
Frequency Separation ◽  
Wave Damping ◽  
Ion Acoustic Wave ◽  
Acoustic Frequency ◽  
Ion Acoustic ◽  
Damping Rate

Using a simpler formalism than in the original paper on this subject, we verify the earlier result that, for a pump frequency separation Δ approximately equal to twice the ion acoustic frequency Ω, the use of two long-wavelength pumps can reduce the threshold for parametric excitation of ion-acoustic waves when, and only when, the Langmuir wave damping rate γ is much larger than Ω. The threshold is then reduced by a factor of order Ω/Ω, the optimum value of t being ▵ 2Ω –Γ for equal pump amplitudes, where Γ is the ion-acoustic wave damping rate and Γ ≪ Ω. The analysis presented in a recent paper is shown to be valid only for γ ≪ Ω, where the threshold reduction is quite small, vanishing in the limit of weak ion-acoustic wave damping (Te/Ti≫ 1).

Studies of ion-acoustic wave properties by pulsed CO2 laser scattering

1979 ◽  
Vol 22 (1) ◽  
pp. 110 ◽  
Author(s):  
R. L. Watterson ◽  
A. L. Peratt ◽  
H. Derfler
Keyword(s):  
Acoustic Wave ◽  
Co2 Laser ◽  
Laser Scattering ◽  
Ion Acoustic Wave ◽  
Ion Acoustic ◽  
Pulsed Co2 Laser ◽  
Wave Properties

Propagation of ion-acoustic wave in the presheath region of a plasma sheath system

2005 ◽  
Vol 73 (1) ◽  
pp. 87-97 ◽  
Author(s):  
U Deka ◽  
C B Dwivedi ◽  
H Ramachandran
Keyword(s):  
Acoustic Wave ◽  
Plasma Sheath ◽  
Ion Acoustic Wave ◽  
Ion Acoustic

scholarly journals Propagation of ion acoustic wave energy in the plume of a high-current LaB6 hollow cathode

2017 ◽  
Vol 96 (2) ◽  
Author(s):  
Benjamin A. Jorns ◽  
Christoper Dodson ◽  
Dan M. Goebel ◽  
Richard Wirz
Keyword(s):  
Acoustic Wave ◽  
Wave Energy ◽  
Hollow Cathode ◽  
High Current ◽  
Ion Acoustic Wave ◽  
Ion Acoustic
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