Characteristics of lower-hybrid surface waves

We have derived the dispersion relation for the lower-hybrid surface waves propagating perpendicularly to the magnetic field in the semi-bounded warm plasma. The mirror reflection boundary condition is adopted to obtain the surface mode of lower-hybrid plasma waves. The effects of magnetic-field str...

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Bibliographic Details
Published in:Europhysics letters 2019-03, Vol.125 (6), p.65001
Main Authors: Lee, Myoung-Jae, Shahmansouri, Mehran, Jung, Young-Dae
Format: Article
Language:English
Subjects:
52.20.-j
52.35.Fp
Boundary conditions
Debye length
Debye temperature
Field strength
Group velocity
Ion temperature
Plasma waves
Propagation modes
Propagation velocity
Surface waves
Wave propagation
Wave reflection
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Summary:We have derived the dispersion relation for the lower-hybrid surface waves propagating perpendicularly to the magnetic field in the semi-bounded warm plasma. The mirror reflection boundary condition is adopted to obtain the surface mode of lower-hybrid plasma waves. The effects of magnetic-field strength and the finite ion temperature on the propagation of the lower-hybrid surface wave are investigated. The increase of ion temperature significantly increases the wave frequency, but an interesting hump of the group velocity appears in the region where the wavelength of the lower-hybrid surface wave is much larger than the electron Debye length. For cold ions, the surface wave is resonant near the lower-hybrid frequency as the wave number goes to infinity.
ISSN:0295-5075
1286-4854
1286-4854
DOI:10.1209/0295-5075/125/65001