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Published on: November 11, 2013
Laboratory realization of an Alfvén wave maser
1Physics and Astronomy Department, University of California, Los Angeles, Los Angeles, California 90095, USA.
Physical Review Letters
|August 9, 2003
Abstract:
It is demonstrated that a frequency selective Alfvén-wave resonator can be realized by applying a nonuniform magnetic field to a plasma region bounded between a cathode and a semitransparent mesh anode. When a current threshold is exceeded, selective amplification results in a highly coherent, large amplitude wave that propagates into an adjacent plasma column.
