Azimuthal electromagnetic surface waves in a rod dielectric magnetized plasma waveguide and their excitation by an annular relativistic rotating electron beam

Jazi, B.; Shokri, Babak; Arbab, Hossein

doi:10.1088/0741-3335/48/8/005

Cited by 22 publications

(19 citation statements)

References 20 publications

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“…In Equations (14)- (17) In the mathematical analysis of the Mathieu equations, q is known as the intensity parameter [17,18]. Recall that in cross-section, the field Equations (25) and (26) and their hybrid solutions (14)- (17) are comparable with the field equations and their solutions presented in [22,23].…”

Section: Waves In Random and Complex Mediamentioning

confidence: 99%

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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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Section: Waves In Random and Complex Mediamentioning

confidence: 99%

“…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: 99%

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

View full text Add to dashboard Cite

show abstract

“…This configuration has two important features. First, it leads to the better interaction between the beam and waves in the plasma waveguides and second we can neglect the Diocotron instability in the TAREB [37][38][39][40][41]. To obtain the growth rate of the waves in this situation the new dispersion relation must be obtained and solved for complex value of ω at real numbers of k z .…”

Section: Non-equilibrium Slow Symmetric Tm-modesmentioning

confidence: 99%

“…On the other hand, there is a discontinuity in the derivative of E z due to the application of Dirac delta function in the TAREB density profile which should be determined. By using linear approximation for perturbed current and charge densities of a magnetized TAREB under the above configuration the jump condition for longitudinal electric field E z of the symmetric TM-mode (m = 0) can be obtained as follows [6,39,40]:…”

Section: Non-equilibrium Slow Symmetric Tm-modesmentioning

confidence: 99%

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Excitation of THz symmetric TM-modes in a cylindrical metallic waveguide with an axial magnetized degenerate plasma rod by an electron beam

2007

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THE THEORETICAL INVESTIGATION OF THz ELECTROMAGNETIC WAVES IN A ROD DEGENERATE PLASMA-WAVEGUIDE

Jazi

Nejati

Salehi

2007

Int J Infrared Milli Waves

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Azimuthal electromagnetic surface waves in a rod dielectric magnetized plasma waveguide and their excitation by an annular relativistic rotating electron beam

Cited by 22 publications

References 20 publications

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

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

Excitation of THz symmetric TM-modes in a cylindrical metallic waveguide with an axial magnetized degenerate plasma rod by an electron beam

THE THEORETICAL INVESTIGATION OF THz ELECTROMAGNETIC WAVES IN A ROD DEGENERATE PLASMA-WAVEGUIDE

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