Abstract
Conditions for the phase synchronism between high-frequency electromagnetic waves with frequencies ω and 2ω propagating in magnetized plasma are investigated. The variety of the values of the plasma density and magnetic field, as well as of wave polarizations, obeying the synchronism conditions are shown to provide resonant broadband wide-angle nonlinear generation of the second harmonic of the pumping wave. Special attention is given to oblique propagation of interacting waves. The coupling strengths for the resonant mode conversion in magnetized collisional plasma are obtained. The double resonance ensuring efficient nonlinear generation of extraordinary mode in the vicinity of the electron cyclotron resonance (ω(2k) = ω ce ) is considered. Examples illustrating these nonlinear phenomena for some plasma and radiation parameters are presented.
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Published in Russian in Fizika Plazmy, 2018, Vol. 44, No. 2, pp. 217–225.
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Shvartsburg, A.B., Erokhin, N.S. Broadband Wide-Angle Second Harmonic Generation in Magnetized Plasma: Double Resonant Effect. Plasma Phys. Rep. 44, 259–266 (2018). https://doi.org/10.1134/S1063780X18020125
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DOI: https://doi.org/10.1134/S1063780X18020125