Abstract

The absorption coefficient of electromagnetic waves by a moving non-uniform plasma slab is investigated theoretically. Two cases of movement are considered: (1) the plasma slab moves parallel to the interface and (2) the plasma slab moves perpendicular to the interface. In both the cases, the influences of six typical plasma parameters on the absorption coefficient are discussed in detail by analyzing the relativistic model. It has been obtained that the absorption coefficient is strongly affected by the velocity of the moving plasma. Various interesting features concerning the variation of the absorption coefficient are obtained, which are very important for applications in space exploration.

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