e/Lower hybrid oscillation

Information
has gloss	eng: A lower hybrid oscillation is a longitudinal oscillation of ions and electrons in a magnetized plasma. The direction of propagation must be very nearly perpendicular to the stationary magnetic field, within about √(me/mi) radians. Otherwise the electrons can move along the field lines fast enough to shield the oscillations in potential, in which case an electrostatic ion cyclotron wave results. The frequency of oscillation is :\omega = [(\Omega_i\Omega_e)^-1}+\omega_pi}^-2}]^-1/2}, where Ωi is the ion cyclotron frequency, Ωe is the electron cyclotron frequency and ωpi is the ion plasma frequency. This is the lower hybrid frequency, so called because it is a "hybrid", or mixture, of two frequencies. There are also an upper hybrid frequency and upper hybrid oscillation. The lower hybrid oscillation is unusual in that the ion and electron masses play an equally important role.
lexicalization	eng: lower hybrid oscillation
instance of	e/Waves in plasmas