Conversion of a whistler wave into a controllable helical wiggler magnetic field

Summary form only given. This paper deals with the principle of establishing a helical wiggler magnetic field with controllable λ/sub w/. A whistler wave which propagates in a magnetoplasma when the source frequency ω/sub 0/ is less than the electron gyrofrequency ω/sub b/, gives rise to a wiggler magnetic field in the plasma when the static magnetic field is switched off. The strength and the period of the wiggler field depends on the parameters of the magnetoplasma medium. When the parameters are such that ω/sub 0/ is much less than ω/sub b/ and ω/sub p/, the total energy of the source wave is converted into the magnetic energy of the wiggler field.