Reflectionless passage of an electromagnetic wave through an inhomogeneous plasma layer

N. S. Erokhin, V. E. Zakharov

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

An exactly solvable model is used as a basis to study the reflectionless passage of a transverse electromagnetic wave through an inhomogeneous plasma containing large-amplitude, small-scale (subwave-length) structures (in particular, opaque regions) that cannot be correctly described by approximate methods. It is shown that, during the reflectionless passage of an electromagnetic wave, strong wave field splashes can occur in certain plasma sublayers. The nonuniform spatial plasma density profile is characterized by a number of free parameters describing the modulation depth of the dielectric function, the characteristic sizes of the structures and their number, the thickness of the inhomogeneous plasma region, and so on. Such plasma density structures are shown to be very diverse when, e.g.,a wave that is incident from vacuum propagates without reflection through a plasma layer (wave barrier transillumination). With the cubic nonlinearity taken into account, a one-dimensional problem of the nonlinear transillumination of an inhomogeneous plasma can be solved exactly.

Original languageEnglish (US)
Pages (from-to)762-767
Number of pages6
JournalPlasma Physics Reports
Volume37
Issue number9
DOIs
StatePublished - Sep 1 2011
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physics and Astronomy (miscellaneous)

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