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Nonlinear penetration of whistler pulses into collisional plasmas via conductivity modificationsA strong electromagnetic impulse (about 0.2 microsec) with central frequency in the whistler-wave regime is applied to a large laboratory plasma dominated by Coulomb collisions. Local electron heating at the antenna and transport along B0 create a channel of high conductivity along which the whistler pulse penetrates with little damping. Because of its rapid temporal evolution, this new form of modulational instability does not involve ducting by density gradients which require ion time scales to develop.
Document ID
19910069047
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Urrutia, J. M.
(California Univ. Los Angeles, CA, United States)
Stenzel, R. L.
(California, University Los Angeles, United States)
Date Acquired
August 14, 2013
Publication Date
September 30, 1991
Publication Information
Publication: Physical Review Letters
Volume: 67
ISSN: 0031-9007
Subject Category
Plasma Physics
Accession Number
91A53670
Funding Number(s)
CONTRACT_GRANT: NAGW-1570
CONTRACT_GRANT: NSF ATM-90-12709
CONTRACT_GRANT: NSF PHY-87-13829
Distribution Limits
Public
Copyright
Other

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