Abstract
The dispersion properties of a magnetoactive plasma-filled waveguide in the vicinity of the upper hybrid frequency ω1 = (ω 2 p + ω 2 B )1/2 (ω1 − δ < ω < ω1) are studied. It is shown that, in this frequency range, the eigenmodes of the plasma-filled waveguide are represented by the families of EH and cyclotron HE modes, the interaction between which is weak everywhere except for the vicinities of certain points in the (ω, k z ) plane. The equations describing the behavior of the dispersion curves in these vicinities are derived. It is shown that, as a result of the interaction, the high-frequency branches of EH modes acquire the cutoff frequencies corresponding to the high-order propagating HE modes. It is established that the anisotropic HE+l mode can also interact with cyclotron HE modes. In this case, its dispersion curve enters the lower half-vicinity of the upper hybrid frequency, where it is modified due to the interaction, and then leaves it.
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Original Russian Text © V.I. Shcherbinin, V.I. Tkachenko, G.I. Zaginaylov, K. Schuenemann, 2014, published in Fizika Plazmy, 2014, Vol. 40, No. 4, pp. 352–358.
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Shcherbinin, V.I., Tkachenko, V.I., Zaginaylov, G.I. et al. Dispersion properties of a magnetoactive plasma-filled waveguide in the vicinity of the upper hybrid frequency. Part II. Plasma Phys. Rep. 40, 283–289 (2014). https://doi.org/10.1134/S1063780X14040084
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DOI: https://doi.org/10.1134/S1063780X14040084