Propagation of azimuthal waves in magnetoactive waveguides filled with a current-carrying plasma

Girka, Oleksii; Girka, V. O.; Гірка, І. О.; Pavlenko, I. V.

doi:10.1134/s1063784208070141

Cited by 6 publications

(8 citation statements)

References 3 publications

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“…[2][3][4][5][6][7][8][9][10][11]. When doing that, the value of the parameter is chosen to be equal to unit for conve nience of readers.…”

Section: Investigation Of the Dispersion Properties Of Aswsmentioning

confidence: 99%

“…Pos sibility of applying low frequency (LF) ASWs from the range of electron cyclotron resonance for designing the devices of plasma and semiconductor electronics is known for a long time [7,8]. ASWs' beam excitation for the case of the waves with the frequency higher than upper hybrid resonance was recently shown the oretically to be possible [9].…”

Section: Introductionmentioning

confidence: 99%

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Influence of the shape of the cross section of a plasma-dielectric interface on the dispersion properties of high-frequency azimuthal surface modes

2012

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Theoretical study of the propagation of a packet of surface electromagnetic surface waves with a zero axial wavenumber in a circular cross section cylindrical metal waveguide within the frequency range that is higher than upper hybrid resonance is carried out. The waveguide is partially filled by plasma and immersed into axial magnetic field. The cross section of the plasma column is assumed to differ from circular shape. The effect of this shape on the dispersion properties of azimuthal surface modes is investigated by the method of successive approximations. The fields of the waves and their eigenfrequencies are determined up to terms of the second order in the deviation of the plasma cross section shape from the ring one. The correc tion to the eigenfrequency of azimuthal surface modes caused by this feature of the plasma column section is proved to increase with decreasing the external magnetic field and increasing the value of the dielectric con stant of the dielectric, that separates the plasma from the metal wall of the waveguide. The spectral composi tion of the wave packet, in the form of which these modes propagate, is studied. The amplitudes of the satellite harmonics of these modes are found to increase with increasing the plasma density and decreasing the exter nal magnetic field.

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“…[2][3][4][5][6][7][8][9][10][11]. When doing that, the value of the parameter is chosen to be equal to unit for conve nience of readers.…”

Section: Investigation Of the Dispersion Properties Of Aswsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of the shape of the cross section of a plasma-dielectric interface on the dispersion properties of high-frequency azimuthal surface modes

2012

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“…Then integrals, which are included in expression (65) for D(κ), can be calculated in an explicit form [22]. Then integrals, which are included in expression (65) for D(κ), can be calculated in an explicit form [22].…”

Section: Coupled High-frequency Asw Propagating In Amentioning

confidence: 99%

“…One can express the components H (m) r and H (m) ϑ (which are the components of OASW in the case B 0ϑ = 0) through the component E (m) z by (22). Components E (m) r and E (m) ϑ of wave fields are connected with both axial components E (m) z and H (m) z .…”

Section: Coupled Asw In Current-carrying Waveguidesmentioning

confidence: 99%

“…Let us consider the case of linear dependence of the external constant azimuthal magnetic field on radial coordinate, B 0ϑ (r) = rB oϑ (a)/a. Then integrals, which are included in expression (65) for D(κ), can be calculated in an explicit form [22]. Analysis of the XASW dispersion relation proves that in narrow waveguides, HF XASW cannot propagate.…”

Section: 23mentioning

confidence: 99%

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Coupled azimuthal modes propagating in current-carrying plasma waveguides

Girka¹,

Гірка²,

Pavlenko³

et al. 2011

J. Plasma Phys.

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The paper is devoted to the theory of electromagnetic surface waves propagating along the azimuthal direction in cylindrical metal waveguides, which are filled with current-carrying plasmas. The problem is solved by the method of successive approximation. Adequacy of this method application is proved here. To study the coupling of ordinary (O-) and extraordinary (X-) azimuthal modes, the linear theory of the eigenazimuthal X-and O-modes is applied as zero approximation. Plasma particles are described in the framework of magneto-hydrodynamics, electromagnetic fields of the coupled azimuthal modes are determined from Maxwell equations. Spatial distribution of electromagnetic field of these coupled modes and their damping caused for different reasons are studied. Possibility to observe experimentally the phenomena, which accompany propagation of these coupled modes, is estimated numerically. Branches of their possible utilization are discussed as well.

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Coupled Surface Flute Waves in Current-Carrying Plasma Waveguides

Гірка

Thumm

2022

Surface Flute Waves in Plasmas

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Propagation of azimuthal waves in magnetoactive waveguides filled with a current-carrying plasma

Cited by 6 publications

References 3 publications

Influence of the shape of the cross section of a plasma-dielectric interface on the dispersion properties of high-frequency azimuthal surface modes

Influence of the shape of the cross section of a plasma-dielectric interface on the dispersion properties of high-frequency azimuthal surface modes

Coupled azimuthal modes propagating in current-carrying plasma waveguides

Coupled Surface Flute Waves in Current-Carrying Plasma Waveguides

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