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Updated: Sep 29, 2026

Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses
Published on: July 2, 2012
The role of lower-hybrid-wave collapse in the auroral ionosphere
P W Schuck1, G I Ganguli, P M Kintner
1Plasma Physics Division, Naval Research Laboratory, Code 6794, 4555 Overlook Avenue, SW, Washington, DC 20375-5000, USA. schuck@ppdmail.nrl.navy.mil
Abstract:
In regions where lower-hybrid solitary structures (LHSS) are observed, the character of auroral lower-hybrid turbulence (LHT) (0-20 kHz) is investigated using the amplitude probability distribution of the electric field. The observed probability distributions are accurately described by a Rayleigh distribution with two degrees of freedom. The statistics of the LHT exhibit no evidence of the global modulational instability or self-similar wave collapse. We conclude that nucleation and resonant scattering in preexisting density depletions are the processes responsible for LHSS in auroral LHT.
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