Method for computing the attenuation coefficient of electromagnetic waves in anisotropic plasma columns

Journal Article · Thu Dec 01 00:00:00 EST 1994 · Physics of Plasmas; (United States)

DOI:https://doi.org/10.1063/1.870912· OSTI ID:6635309

Ghanashev, I; Zhelyazkov, I ^[1]

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1. Faculty of Physics, Sofia University, BG-1126 Sofia (Bulgaria)

A new and efficient method for calculating the attenuation coefficient of weakly damped electromagnetic waves traveling along wave-guiding structures partially or entirely filled by a lossy anisotropic dielectric, in particular cold axially magnetized plasma, is proposed. The structure cross-section geometry can be arbitrary and any nonradiating mode can be considered. In the case of plasma columns, they might be transversely inhomogeneous. Having obtained the attenuation coefficient, it is straightforward to find out the axial structure of plasma columns sustained by the waves themselves. The method is applied to azimuthally symmetric and dipolar waves in cylindrical plasma columns and it is found to reproduce all known theoretical results within its applicability.

• OSTI ID: 6635309
• Journal Information: Physics of Plasmas; (United States), Vol. 1:12; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COLD PLASMA
ELECTROMAGNETIC RADIATION
WAVEGUIDES
ANISOTROPY
ATTENUATION
DISPERSION RELATIONS
ELECTRIC DISCHARGES
MICROWAVE RADIATION
PLASMA DENSITY
PLASMA
RADIATIONS
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