New modes in a plasma with periodic boundaries: the origin of the dense spectrum
Date
1991-10-28Author
Lou, W.
Carmel, Y.
Antonsen, T.
Destler, William
Granatstein, V.
Metadata
Show full item recordAbstract
We analyze the new features of the low-frequency (£0 < £Op) modes of wave propagation in a plasma filled,
spatially periodic structure. The spectrum of these modes is drastically modified by the periodic
boundaries in a way that produces a fundamentally new kind of spectral behavior, a "dense spectrum."
The interaction of ballistic electron beam modes with the dense spectrum of plasma modes is shown to
be unstable. These modes may play an important role in the area of plasma microwave electronics.