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Excitations of ion‐Bernstein waves in ionospheric modification experiment
Author(s) -
Sharma R. P.,
Kumar Atul,
Kumar Raj
Publication year - 1993
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/93rs01374
Subject(s) - physics , instability , ionosphere , convective instability , computational physics , magnetosphere , harmonics , plasma , electromagnetic radiation , atomic physics , geophysics , optics , mechanics , nuclear physics , quantum mechanics , voltage
In the present paper the parametric decay instability of an extraordinary electromagnetic wave into an upper hybrid wave and a low‐frequency electrostatic ion‐Bernstein wave at different harmonics is considered. Expressions have been derived for homogeneous growth rates, thresholds, and convective thresholds at different harmonics of ion‐Bernstein wave for this instability. Applications of this investigation to ionospheric modification experiment and polar cusp region of Earth's magnetosphere have also been pointed out. It has been found that the present decay instability is more important than the stimulated Brillouin scattering in homogeneous plasmas.