Convective amplification of a three-wave parametric instability in inhomogeneous plasma
- Department of Engineering Physics, Tsinghua University, Beijing 100084 (China)
The three-wave parametric instability in inhomogeneous plasma is revisited and the inconsistency of the convective amplification in previous literatures is resolved. By employing multiple methods, the amplification factor of the decay mode due to the inhomogeneity is confirmed as A=πγ{sub 0}{sup 2}/(v{sub g1x}v{sub g2x}κ{sup ′}), which is independent of the linear damping rate of the decay mode, where γ{sub 0} is the nonlinear growth rate in homogeneous plasma, v{sub g1x} and v{sub g2x} are the group velocities in the x direction of the two decay modes and κ{sup ′} is the derivative of the wavevector mismatch of the three coupled waves due to the plasma inhomogeneity.
- OSTI ID:
- 22218470
- Journal Information:
- Physics of Plasmas, Vol. 20, Issue 11; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Convective growth of parametrically unstable modes in inhomogeneous media
Resonant parametric excitations driven by lower-hybrid fields
Parametric instabilities of damped modes in inhomogeneous plasmas
Journal Article
·
Sat Jun 01 00:00:00 EDT 1991
· Physics of Fluids B; (USA)
·
OSTI ID:22218470
Resonant parametric excitations driven by lower-hybrid fields
Journal Article
·
Sat Nov 01 00:00:00 EST 1980
· Phys. Fluids; (United States)
·
OSTI ID:22218470
Parametric instabilities of damped modes in inhomogeneous plasmas
Technical Report
·
Sun Apr 01 00:00:00 EST 1973
·
OSTI ID:22218470