Multistream Interactions in Stratified and Space-Time Periodic Media.
Abstract
Multistream interactions are studied when the propagation medium (dielectric or plasma) is stratified or space-time periodic (i.e., the medium parameters behave like alpha(z,t) = (alpha sub 0) (1+eta f(Kz-omega t)) where f(xi) is a periodic function). The space-time periodicity can be considered as due to a strong pump wave. The types of interactions were determined using different methods: Taylor series development, power flow method (with conservation of energy and momentum), and a numerical method based on the wave equation solution. The Brillouin diagram in the limit eta approaches 0 is used to investigate different aspects of the problem without extensive computations. It is found that all types of interactions, stable and unstable, can occur even if they did not exist in the homogeneous case. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1972
- Accession Number
- AD0753690
Entities
People
- Charles Elachi
Organizations
- California Institute of Technology