NDLI: Suppression of autoresonant stimulated Raman scattering in transversely weakly magnetized plasmas

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Suppression of autoresonant stimulated Raman scattering in transversely weakly magnetized plasmas

Content Provider	Scilit
Author	Zhou, Yuanzhi Zheng, Chunyang Liu, Zhanjun Cao, Li-Hua
Copyright Year	2021
Description	Journal: Plasma Physics and Controlled Fusion We investigate the behaviour of backward stimulated Raman scattering (BSRS) in inhomogeneous plasma with a transverse external magnetic field via 1D and 2D particle-in-cell simulations and theoretical analysis. The external magnetic field $Bext causes nonlinear damping of large-amplitude electron plasma waves (EPWs), and significantly limits the reflectivity of stimulated Raman scattering (SRS) even ifBext is very weak. For a single resonance point,Bext limits the kinetic nonlinear frequency shift, impedes the autoresonance behaviour of SRS, and narrows the resonance region. We also exhibitBext distorts the distribution function of electrons evidently, and alters the wavefronts of EPWs in high dimensional cases. The simulation results indicate a moderateBext can significantly reduce the trapped electron induced gain of SRS reflectivity, and make the BSRS reflectivity stay at its linear convective saturation level steadily.$
Related Links	https://iopscience.iop.org/article/10.1088/1361-6587/abf253/pdf
ISSN	07413335
e-ISSN	13616587
DOI	10.1088/1361-6587/abf253
Journal	Plasma Physics and Controlled Fusion
Issue Number	5
Volume Number	63
Language	English
Publisher	IOP Publishing
Publisher Date	2021-03-26
Access Restriction	Open
Subject Keyword	Journal: Plasma Physics and Controlled Fusion Astronomy and Astrophysics Www.w3.org/1998/math/mathml
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Nuclear Energy and Engineering

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