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Theoretical Studies of Plasma Wave Coupling: A New Approach

  • D.-H. Lee
  • K. Kim
  • E.-H. Kim
  • K.-S. Kim
Part of the Lecture Notes in Physics book series (LNP, volume 687)

Abstract

New numerical and analytical methods are applied to wave coupling in inhomogeneous plasma. It is found that the X-mode feeds energy into the upper hybrid resonance at plasma inhomogeneities oriented perpendicular to the ambient magnetic field. The results are consistent with previous studies using other methods. When a finite pressure is introduced, the upper hybrid waves are no longer stationary and start propagating. They can form cavity modes and emit a small fraction of O (or X) waves. Limitations of the present study are the neglect of collisions and plasma pressure effects which might limit the growth of the upper hybrid waves; furthermore, this study concentrates on the case for which the density gradient is perpendicular to the magnetic field, a condition that is valid near the equator.

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Copyright information

© Springer 2006

Authors and Affiliations

  • D.-H. Lee
    • 1
  • K. Kim
    • 2
  • E.-H. Kim
    • 1
  • K.-S. Kim
    • 1
  1. 1.Department of Astronomy and Space ScienceKyung Hee UniversityKyunggiKorea
  2. 2.Department of Molecular Science and TechnologyAjou UniversitySuwon, KyunggiKorea

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