Τίτλος:
Electromagnetic rogue waves in beam-plasma interactions
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
The occurrence of rogue waves (freak waves) associated with electromagnetic pulse propagation interacting with a plasma is investigated, from first principles. A multiscale technique is employed to solve the fluid Maxwell equations describing weakly nonlinear circularly polarized electromagnetic pulses in magnetized plasmas. A nonlinear Schrödinger (NLS) type equation is shown to govern the amplitude of the vector potential. A set of non-stationary envelope solutions of the NLS equation are considered as potential candidates for the modeling of rogue waves (freak waves) in beam-plasma interactions, namely in the form of the Peregrine soliton, the Akhmediev breather and the Kuznetsov-Ma breather. The variation of the structural properties of the latter structures with relevant plasma parameters is investigated, in particular focusing on the ratio between the (magnetic field dependent) cyclotron (gyro-)frequency and the plasma frequency. © 2013 IOP Publishing Ltd.
Συγγραφείς:
Veldes, G.P.
Borhanian, J.
McKerr, M.
Saxena, V.
Frantzeskakis, D.J.
Kourakis, I.
Περιοδικό:
Journal of Optics (United Kingdom)
Εκδότης:
IOP Publishing Ltd
Λέξεις-κλειδιά:
Electromagnetic pulse; Laser beams; Laser produced plasmas; Maxwell equations; Nonlinear equations; Solitons, breathers; Circularly polarized; Electromagnetic pulse propagation; Laser-plasma interactions; Magnetized plasmas; Multiscale technique; Plasma frequencies; Rogue waves, Beam plasma interactions
DOI:
10.1088/2040-8978/15/6/064003
