Theory of Propagation of Electromagnetic Waves in Space-Time Varying Media

Abstract

Using WKB (Wentzel-Kramers-Brillouin) methods the author has considered the propagation of electromagnetic waves in isotropic lossless media which vary slowly with both position and time. It is found that in such media the meaning of various quantities, such as the group velocity, must be reinterpreted. The theory is applied to study propagation in space-time varying dielectrics and plasmas.

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Document Details

Document Type
Technical Report
Publication Date
Apr 24, 1972
Accession Number
AD0746676

Entities

People

  • Ronald L. Fante

Organizations

  • Air Force Cambridge Research Laboratories

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Dielectrics
  • Differential Equations
  • Dispersion Relations
  • Doppler Effect
  • Electromagnetic Wave Propagation
  • Equations
  • Four Dimensional
  • Frequency
  • Frequency Shift
  • Group Velocity
  • Materials
  • Ray Tracing
  • Security
  • Time Intervals
  • Wave Propagation
  • Waves

Fields of Study

  • Physics

Readers

  • Plasma Physics / Magnetohydrodynamics

Technology Areas

  • Space