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Fourkal E , Velchev I , Ma CM , Smolyakov A
Evanescent wave interference and the total transparency of a warm high-density plasma slab
PHYSICS OF PLASMAS. 2006 No.;13(9) :Art.
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AbstractIt is shown that an overcritical density plasma slab can be totally transparent to a p-polarized obliquely incident electromagnetic wave. High transparency is achieved due to the interference of the evanescent waves in the subcritical region. The transmission coefficient has the resonant character due to the excitation of a plasma surface mode (plasmon-polariton). In a warm plasma case, the excitation of the propagating longitudinal (electrostatic) modes becomes possible. It is demonstrated that these longitudinal excitations facilitate the total transparency of an opaque plasma slab creating additional resonances in the transmission property of the system. (c) 2006 American Institute of Physics.