scholarly journals Alfvén ‘resonance’ reconsidered: Exact equations for wave propagation across a cold inhomogeneous plasma

1994 ◽  
Vol 1 (11) ◽  
pp. 3523-3541 ◽  
Author(s):  
P. M. Bellan
Keyword(s):  
Wave Propagation ◽  
Inhomogeneous Plasma

Features of Wave Propagation in an Inhomogeneous Plasma near the Electron Cyclotron Resonance

JETP Letters ◽  
2019 ◽  
Vol 110 (4) ◽  
pp. 262-265
Author(s):  
M. S. Malyshev ◽  
V. V. Nazarov ◽  
A. V. Kostrov ◽  
A. G. Galka
Keyword(s):  
Wave Propagation ◽  
Cyclotron Resonance ◽  
Electron Cyclotron Resonance ◽  
Inhomogeneous Plasma ◽  
Electron Cyclotron

Plasma Waves in an Inhomogeneous Plasma Carrying a Current

1975 ◽  
Vol 53 (4) ◽  
pp. 385-390
Author(s):  
T. N. Bhatnagar ◽  
S. R. Sharma
Keyword(s):  
Wave Propagation ◽  
Density Gradient ◽  
Inhomogeneous Plasma ◽  
Low Frequency ◽  
Magnetoactive Plasma ◽  
Plasma Waves ◽  
Constant Current ◽  
Helicon Wave ◽  
Weak Density ◽  
A Current

Wave propagation in a magnetoactive plasma carrying a constant current is considered for the case of uniform and nonuniform media having a weak density gradient. The effect of drift velocity and nonuniformity is examined in detail for the longitudinal electrokinetic wave and the low frequency helicon wave propagation.

Full-wave calculations of the O-X mode conversion process

1988 ◽  
Vol 39 (2) ◽  
pp. 319-337 ◽  
Author(s):  
F. R. Hansen ◽  
J. P. Lynov ◽  
C. Maroli ◽  
V. Petrillo
Keyword(s):  
Wave Propagation ◽  
Boundary Value Problem ◽  
Numerical Solutions ◽  
Mode Conversion ◽  
Inhomogeneous Plasma ◽  
Collisionless Plasma ◽  
Point Boundary ◽  
Full Wave ◽  
Hybrid Resonance ◽  
Scale Length

A two-point boundary-value problem has been formulated that describes the conversion between ordinary (O) and extraordinary (X) wave modes in a cold inhomogeneous plasma. Numerical solutions to this problem have been obtained for various values of the WKB parameter k0L; where k0 is the vacuum wavenumber and L the density-gradient scale length. The results are compared with three different theoretical expressions for the O-X mode conversion efficiency derived by others in the WKB limit of k0 L ≫ l. Most of the results presented in this paper are obtained for a collisionless plasma with finite density near the plasma cut-off density. However, some examples are also given of wave propagation from vacuum. In these examples, collision effects are added to the equations in order to remove the singularity otherwise present at the position of the upper hybrid resonance layer.

Sign in / Sign up

Export Citation Format

Share Document