Singular Waves in a Bounded Chiroplasma

Marakassov, Dmitri A.; Fisanov, V. V.

doi:10.1163/156939301x00526

Cited by 7 publications

(5 citation statements)

References 9 publications

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“…The constitutive expressions for the chiroplasma material are defined below [ Torres‐Silva et al , ; Marakassov and Fisanov , ; Guo , ; Gao et al , ; Gong , ]

boldD = ε_{0} \overset{\overset{true¯}{ε}}{true} . boldE + j γ boldH

boldH = j γ boldE prefix+ \frac{1}{μ} boldB

where γ is the chirality parameter, ε 0 is the permittivity of free space, and μ is the permeability of free space. The permittivity tensor can be written as

\overset{\overset{true¯}{ε}}{true} = = (||, \begin{array}{c} center & ε_{1} & - normalj ε_{2} & 0 \\ center & j ε_{2} & ε_{1} & 0 \\ center & 0 & 0 & ε_{3} \end{array})

where

ε_{1} = ε_{0} ((), 1 - \frac{ω_{normalp}^{2}}{ω^{2} - ω_{p}^{2}}), ε_{2} = ε_{0} \frac{ω_{c} ω_{p}^{2}}{ω ((), ω^{2} - ω_{c}^{2})}, ε_{3} = ε_{0} ((), 1 - \frac{ω_{normalp}^{2}}{ω^{2}})

, with

ω_{p} = \sqrt{\frac{N e^{2}}{m_{e} ε_{0}}}

and

ω_{c} = \frac{e B_{0}}{m_{e} ε_{0}}

.…”

Section: Formulationsmentioning

confidence: 99%

“…The constitutive expressions for the chiroplasma material are defined below [Torres-Silva et al, 2000;Marakassov and Fisanov, 2001;Guo, 2013;Gao et al, 2014;Gong, 1999]…”

Section: Formulationsmentioning

confidence: 99%

“…Anisotropic-filled waveguides have many distinct characteristics over bi-isotropic chiral guiding media [Eftimiu and Pearson, 1989]. Plasma is an attractive medium because it is an anisotropic medium due to the presence of the biasing magnetic field [Torres-Silva et al, 2000;Marakassov and Fisanov, 2001], which allows a form of control over the chirality of the medium. Conceiving chiroplasma as a guiding mean in waveguide structures can alter the features of the electromagnetic waves propagating modes [Guo, 2013;Gao et al, 2014;Gong, 1999].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Power flux distribution in chiroplasma‐filled perfect electromagnetic conductor circular waveguides

Ghaffar

Alkanhal

2016

Radio Science

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Theoretical analysis of the electromagnetic wave propagation in circular waveguides with a chiroplasma core coated with a perfect electromagnetic conductor (PEMC) is presented. The presented formulations and analysis are general for any perfect electric, perfect magnetic, or perfect electromagnetic conductor (PEMC) waveguides filled with any general anisotropic/isotropic metamaterial including plasma. The characteristic equation for the modes in this waveguide is obtained, and the behavior of the dispersion curves and the power flux are examined and evaluated numerically. The results demonstrate that the behavior of the power flux transported in the guide, in magnitude and orientation, is highly determined by the chirality parameter and the plasma and cyclotron frequencies. The mode cutoff frequencies are sensitive to the variations in the filling material and chirality parameters and likewise affected by the variations in the PEMC admittance parameter.

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“…The constitutive expressions for the chiroplasma material are defined below [ Torres‐Silva et al , ; Marakassov and Fisanov , ; Guo , ; Gao et al , ; Gong , ]

boldD = ε_{0} \overset{\overset{true¯}{ε}}{true} . boldE + j γ boldH

boldH = j γ boldE prefix+ \frac{1}{μ} boldB

where γ is the chirality parameter, ε 0 is the permittivity of free space, and μ is the permeability of free space. The permittivity tensor can be written as

\overset{\overset{true¯}{ε}}{true} = = (||, \begin{array}{c} center & ε_{1} & - normalj ε_{2} & 0 \\ center & j ε_{2} & ε_{1} & 0 \\ center & 0 & 0 & ε_{3} \end{array})

where

ε_{1} = ε_{0} ((), 1 - \frac{ω_{normalp}^{2}}{ω^{2} - ω_{p}^{2}}), ε_{2} = ε_{0} \frac{ω_{c} ω_{p}^{2}}{ω ((), ω^{2} - ω_{c}^{2})}, ε_{3} = ε_{0} ((), 1 - \frac{ω_{normalp}^{2}}{ω^{2}})

, with

ω_{p} = \sqrt{\frac{N e^{2}}{m_{e} ε_{0}}}

and

ω_{c} = \frac{e B_{0}}{m_{e} ε_{0}}

.…”

Section: Formulationsmentioning

confidence: 99%

“…The constitutive expressions for the chiroplasma material are defined below [Torres-Silva et al, 2000;Marakassov and Fisanov, 2001;Guo, 2013;Gao et al, 2014;Gong, 1999]…”

Section: Formulationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Power flux distribution in chiroplasma‐filled perfect electromagnetic conductor circular waveguides

Ghaffar

Alkanhal

2016

Radio Science

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show abstract

“…[10][11][12][13][14][15] Studies show that chiroplasma waveguides, bounded by perfect electromagnetic conductor (PEMC) parallel plates, [11,16] are of great interest in the field of optics. [17] Many researchers have studied realization and applications of PEMC. [18][19][20] The PEMC parallel-plate waveguide filled with chiroplasma media could have many distinctive features over other conventional guiding media.…”

Section: Introductionmentioning

confidence: 99%

Guided modes in chiroplasma-filled perfect electromagnetic conductor parallel-plate waveguides

Ghaffar

Alkanhal

2015

Waves in Random and Complex Media

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Theoretical analysis of electromagnetic wave propagation in a perfect electromagnetic conductor (PEMC) parallel-plate waveguide filled with a chiroplasma material is presented in this article. The derived formulations are general and can analyze perfect electric, perfect magnetic, or PEMC waveguides filled with any general isotropic/anisotropic material including plasma and metamaterials. The characteristic equation for the modes in this waveguide is obtained, and the behavior of the dispersion curves and the energy flux are examined and evaluated numerically. The results demonstrate that the chirality parameter, the plasma frequency, and the cyclotron frequency influence the behavior of the energy flux transported in the guide, in magnitude and orientation. The bifurcated mode cutoff frequencies are sensitive to the variations in the filling material parameters and likewise effected by the variations in the PEMC walls admittance parameter.

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“…Also dispersion equation for a circular waveguide partially filled with chiro plasma has been derived (Gong, 1999). "Singular waves in a bounded chiro plasma" (Marakassov & Fisanov, 2001) has been studied.…”

mentioning

confidence: 99%

Analysis and Application of the Electromagnetic Wave Propagation, Fields, and Dispersion Relation in an Elliptical Chiro Plasma Waveguide Immersed in Magnetized Plasma

Gholamshahi,

Abdoli‐Arani

2023

Radio Science

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This research proposes and investigates an elliptical waveguide filled with chiro plasma as its core and magnetized plasma as its clad region. The clad region is in the constant infinite magnetic field, and its direction is the same as the wave propagation in the chiro plasma elliptical waveguide. The electromagnetic wave propagation in the considered waveguide is studied. The expressions for electromagnetic field components in the chiro plasma core and magnetized plasma cladding are derived. The dispersion relations for the hybrid modes are calculated considering appropriate boundary conditions at the chiro plasma and magnetized plasma interface. The behavior of the energy flux and the dispersion curves are numerically and graphically studied. It is seen that the magnitude of the power density decreases with the increase of the cyclotron frequency and it increases with the increase of the plasma frequency and supports power flow in the backward direction for the considered mode. Furthermore, it is shown higher values of the chirality parameter cause the magnitude of the power flux to increase in the backward direction.

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Singular Waves in a Bounded Chiroplasma

Cited by 7 publications

References 9 publications

Power flux distribution in chiroplasma‐filled perfect electromagnetic conductor circular waveguides

Power flux distribution in chiroplasma‐filled perfect electromagnetic conductor circular waveguides

Guided modes in chiroplasma-filled perfect electromagnetic conductor parallel-plate waveguides

Analysis and Application of the Electromagnetic Wave Propagation, Fields, and Dispersion Relation in an Elliptical Chiro Plasma Waveguide Immersed in Magnetized Plasma

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