Emission from mode conversion regions
- Physics Department, College of William and Mary, Williamsburg, Virginia 23187-8795 (United States)
The emission of multi-component waves by sources in non-uniform media of arbitrary spatial dimensions is discussed. If the emission occurs in the vicinity of a mode conversion region - i.e., a region where the local dispersion relations for two polarizations become nearly degenerate - the far field is very complex. The special case of plane-wave sources was analyzed in detail and it was shown that the qualitative nature of the far field is completely determined by the ray geometry of the un-coupled modes. The numerical simulations were conducted for a model problem involving two interacting 1-D wave modes excited in a non-stationary and non-homogeneous medium. The qualitative picture of emission agrees with the theoretical predictions.
- OSTI ID:
- 21210489
- Journal Information:
- AIP Conference Proceedings, Vol. 485, Issue 1; Conference: 13. topical conference on radio frequency power in plasmas, Annapolis, MD (United States), 12-14 Apr 1999; Other Information: DOI: 10.1063/1.59754; (c) 1999 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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