Transition to turbulence via spatiotemporal intermittency in stimulated Raman backscattering

Journal Article · Mon Apr 01 04:00:00 EST 1996 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

DOI:https://doi.org/10.1103/PhysRevE.53.4056· OSTI ID:283818

Skoric, M M; Jovanovic, M S; Rajkovic, M R ^[1]

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1. Vinca Institute of Nuclear Sciences, P.O. Box 522, 11001 Belgrade (Yugoslavia)

The spatiotemporal evolution of stimulated Raman backscattering in a bounded, uniform, weakly dissipative plasma is studied. The nonlinear model of a three-wave interaction involves a quadratic coupling of slowly varying complex amplitudes of the laser pump, the backscattered and the electron plasma wave. The corresponding set of coupled partial differential equations with nonlinear phase detuning that is taken into account is solved numerically in space time with fixed nonzero source boundary conditions. The study of the above open, convective, weakly confined system reveals a quasiperiodic transition to spatiotemporal chaos via spatiotemporal intermittency. In the analysis of transitions a dual scheme borrowed from fields of nonlinear dynamics and statistical physics is applied. An introduction of a nonlinear three-wave interaction to a growing family of paradigmatic equations which exhibit a route to turbulence via spatiotemporal intermittency is outlined in this work. {copyright} {ital 1996 The American Physical Society.}

• Sponsoring Organization: USDOE
• OSTI ID: 283818
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Journal Name: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics Journal Issue: 4 Vol. 53; ISSN 1063-651X; ISSN PLEEE8
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BACKSCATTERING
CHAOTIC SYSTEMS
COHERENT SCATTERING
ELECTRON PLASMA WAVES
HYDRODYNAMICS
LIGHT SCATTERING
NONLINEAR PROBLEMS
PLASMA
RAMAN EFFECT
TURBULENCE