Nonlinear theory of the excitation of azimuthal surface waves during dissipative instability

Girka, V. O.; Kondratenko, A. N.; Puzyrkov, S Yu

doi:10.1134/1.1545586

Cited by 5 publications

(3 citation statements)

References 3 publications

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“…It is obvious that the problem of electron beam-plasma interaction is simplest if a plasma is placed inside a cylindrical metal waveguide with smooth walls and the plasma column is uniform over its length and azimuth [5][6][7][8]. On the other hand, the great interest in the problem of gas discharges sustained on the surface waves is caused by their application in coating by plasma-enhanced chemical vapour deposition and/or etching for microelectronics [9][10][11]. The parameters of such discharges depend on many factors, such as type of electromagnetic surface waves used [3].…”

Section: Introductionmentioning

confidence: 99%

Dispersion relation of azimuthal electromagnetic surface waves on a magnetized plasma column in a dielectric lined slow-wave waveguide

Jazi¹,

Mehdian²

2004

Plasma Phys. Control. Fusion

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The dispersion relation of azimuthal electromagnetic surface waves on a magnetized plasma column surrounded by a metallic cylindrical dielectric lined slow-wave waveguide is obtained. The permissible frequency region for these waves in E-and B-mode is presented. Furthermore, the graphs of frequency spectra and radial dependence of fields on the external magnetic field strength, geometric dimensions of the waveguide, radius of plasma column and thickness of dielectric are investigated.

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Section: Introductionmentioning

confidence: 99%

Dispersion relation of azimuthal electromagnetic surface waves on a magnetized plasma column in a dielectric lined slow-wave waveguide

Jazi¹,

Mehdian²

2004

Plasma Phys. Control. Fusion

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“…These waves have been investigated previously [22][23][24][25] in long cylindrical metallic waveguides with circular cross-section. In the limit of waveguides with circular 10 B. Jazi et al…”

Section: 2mentioning

confidence: 98%

Propagation of electromagnetic waves in elliptical waveguides made of materials with anisotropic Hermitian dielectric tensors

Jazi

Abdoli-Arani

Rahmani

et al. 2010

Waves in Random and Complex Media

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This paper studies the generalized equations of electromagnetic fields and their solutions in long waveguides with several regions made of materials with Hermitian dielectric tensors and elliptical cross-sections. The special conditions under which the quadratic homogeneous equations of the hybrid modes can be reduced to second-order equations are presented. IntroductionIt is well known that the dispersion relation of electromagnetic waves in a waveguide essentially depends on its geometrical dimensions, and the dielectric permittivity and permeability coefficients of its materials [1-3]. There are waveguides with different cross-sections, made of different materials and different configurations. Many years ago these instruments with elliptical cross-sections were used as accelerators of charged particles [4], were used for microwave heating [5], and were also used as transmission lines [6]. Recently an elliptical waveguide made of metamaterials in which the phase velocity and energy flow of an electromagnetic wave can be antiparallel has also been investigated [7]. In [4][5][6][7], it was assumed that the waveguides were made of solid materials with isotropic scaler dielectric permittivity and permeability. The propagation characteristics of ferrite-filled elliptical waveguides have been investigated as an anisotropic problem only in [8,9], where the anisotropic properties refer to the permeability tensor. Recently, ideal stability of an elliptical plasma column [10] and propagation of charge-space and slow waves in elliptical waveguides [11,12] have been investigated. Furthermore, the theory of the equilibrium and stability of a high-intensity beam and the attenuation characteristics of elliptic waveguides have been analysed in [13] and [14], respectively. In the other words, plasma waveguides with elliptical cross-section are a new application of elliptic waveguides. Generally, there are two methods for investigating wave propagation in a material. In the first method, the perturbed values of the macroscopic quantities of the system are matched with the governing fundamental electromagnetic equations of the system [15]. In the second method, the perturbed values of the microscopic

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“…Such a device could significantly extend the range of possibilities for microwave beam control at high levels of radiated power [21][22][23]. On the other hand, much interest in the problem of gas discharges sustained on surface waves is due to the application of this phenomenon in coating by plasma-enhanced, chemical vapour deposition and/or etching for microelectronics [24][25][26]. Significant attention has been paid to the development of plasma sources and investigations of the properties of the plasma produced in relativistic plasma microwave electronics [27].…”

Section: Introductionmentioning

confidence: 99%

Excitation of electromagnetic surface waves by an annular electron beam in a plasma waveguide with a dielectric rod and a magnetized plasma column

Jazi

Shokri

2004

Plasma Phys. Control. Fusion

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Nonlinear theory of the excitation of azimuthal surface waves during dissipative instability

Cited by 5 publications

References 3 publications

Dispersion relation of azimuthal electromagnetic surface waves on a magnetized plasma column in a dielectric lined slow-wave waveguide

Dispersion relation of azimuthal electromagnetic surface waves on a magnetized plasma column in a dielectric lined slow-wave waveguide

Propagation of electromagnetic waves in elliptical waveguides made of materials with anisotropic Hermitian dielectric tensors

Excitation of electromagnetic surface waves by an annular electron beam in a plasma waveguide with a dielectric rod and a magnetized plasma column

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