Gould, Roy W. and LaPointe, Michael A. (1991) Cyclotron resonance in a pure electron plasma column. Physical Review Letters, 67 (26). pp. 3685-3688. ISSN 0031-9007 http://resolver.caltech.edu/CaltechAUTHORS:GOUprl91
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We demonstrate experimentally the effects of plasma rotation and particle thermal velocities on cyclotron resonance in a long cylindrical pure electron plasma column of low density (ωp2≪ωc2). A single m=1 mode (eimθ-iωt) is found whose frequency ω is down-shifted from ωc=eB/me by an amount equal to the low-frequency diocotron mode frequency (〈ωp2〉/2ωc). For m=2,3,4,. . . sets of modes are found which are Doppler shifted upward from ωc. We explain these as radially trapped and azimuthally propagating Bernstein modes.
|Additional Information:||©1991 The American Physical Society Received 16 September 1991 This work was supported by ONR Grant No. N00014-89-J-1264 and one of us (R.W.G.) gratefully acknowledges stimulating discussions with C. F. Driscoll, J. H. Malmberg, and T. M. O'Neil about non-neutral plasmas.|
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|Deposited On:||10 Feb 2006|
|Last Modified:||26 Dec 2012 08:45|
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