Open AccessANOMALOUS MODULATION OF THE WAVE FIELD IN A PLASMA WAVEGUIDE
Author(s) -
Volodymyr Kuklin,
Eugen V. Poklonskiy
Publication year - 2019
Publication title -
problems of atomic science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.216
H-Index - 17
eISSN - 1562-6016
pISSN - 1682-9344
DOI - 10.46813/2019-124-111
Subject(s) - amplitude , physics , instability , envelope (radar) , two stream instability , modulation (music) , amplitude modulation , plasma , waveguide , quantum electrodynamics , computational physics , optics , frequency modulation , mechanics , acoustics , quantum mechanics , telecommunications , radio frequency , radar , computer science
The consequences of the development of the modulation instability of an intense wave field in a waveguide filled with plasma are considered. It is shown that in the mode of developed instability, the amplitude of the main wave under conditions of its weak absorption decreases by three to four times. The average energy density of the instability spectrum is almost twice the energy density of the main wave. The amplitude of the modulation envelope is three times the average amplitude of the main wave. The frequency of occurrence of anomalous modulation bursts is estimated.