Parametric generation of low-frequency waves by plasma electrons accelerated under electron cyclotron resonance conditions |
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Authors: | M E Gushchin S V Korobkov A V Kostrov D A Odzerikho S E Priver and A V Strikovskii |
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Institution: | 1.Institute of Applied Physics,Russian Academy of Sciences,Nizhni Novgorod,Russia |
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Abstract: | It has been shown experimentally that the diamagnetic effect appearing when electrons of a magnetized plasma in the antenna
near field are accelerated under electron cyclotron resonance conditions can be used to generate low-frequency waves. The
amplitude modulation of a signal supplied to the antenna is accompanied by the modulation of the diamagnetic effect and leads
to the emission of waves at the modulation frequency to the surrounding plasma. In this process, the extended plasma region
containing accelerated electrons serves as a parametric bodiless antenna. The results of the model laboratory experiments
make it possible to propose a method for the parametric generation of low-frequency whistler waves in the Earth’s ionosphere
by a powerful amplitude-modulated signal supplied to the satellite-borne antenna. |
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