• Corpus ID: 238582699

# Intermittent excitation of parametric instabilities enhanced by synergistic effect in broadband laser plasma interaction

@inproceedings{Liu2021IntermittentEO,
title={Intermittent excitation of parametric instabilities enhanced by synergistic effect in broadband laser plasma interaction},
author={Qingkang Liu and Enhao Zhang and Wen-shuai Zhang and Hongbo Cai and Yanqi Gao and Shao-ping Zhu},
year={2021}
}
A new evolution pattern for parametric instabilities in the non-linear stage driven by a broadband laser is studied with kinetic particle-in-cell simulations. It is found that an intermittent excitation of parametric instabilities caused by the high-intensity pulses, which are generated by the laser intensity variation of the broadband laser. The synergism between these high-intensity pulses reduces the Landau damping through the co-propagation of the electron-plasma waves and hot electrons…

## References

SHOWING 1-10 OF 34 REFERENCES
Suppression of parametric instabilities in inhomogeneous plasma with multi-frequency light
• Physics
Plasma Physics and Controlled Fusion
• 2019
The development of parametric instabilities in a large scale inhomogeneous plasma with an incident laser beam composed of multiple-frequency components is studied theoretically and numerically.
Effective suppression of parametric instabilities with decoupled broadband lasers in plasma
A theoretical analysis for the stimulated Raman scattering (SRS) instability driven by two laser beams with a certain frequency difference is presented. It is found that strong coupling and enhanced
Effects of large laser bandwidth on stimulated Raman scattering instability in underdense plasma
The effects of laser bandwidth on stimulated Raman scattering (SRS) instability in underdense plasma are studied by particle-in-cell simulations. In the simulations, sinusoidal frequency modulation
Numerical study of bandwidth effect on stimulated Raman backscattering in nonlinear regime
Nonlinear behaviors of stimulated Raman scattering driven by finite bandwidth pumps are studied by one dimensional particle-in-cell simulations. The broad spectral feature of plasma waves and
Plasma wakefields driven by an incoherent combination of laser pulses: A path towards high-average power laser-plasma acceleratorsa)
• Physics
• 2014
The wakefield generated in a plasma by incoherently combining a large number of low energy laser pulses (i.e., without constraining the pulse phases) is studied analytically and by means of fully
Self-organized bursts of coherent stimulated Raman scattering and hot electron transport in speckled laser plasma media.
• Physics, Medicine
Physical review letters
• 2012
Trapping-induced nonlinearity and speckle interaction through transport of hot electrons and back- and sidescattered SRS waves enable the system of speckles to self-organize and exhibit coherent, sub-ps SRS bursts with more than 100% instantaneous reflectivity, consistent with a SRS transverse coherence width much larger than aSpeckle width.
Generating energetic electrons through staged acceleration in the two-plasmon-decay instability in inertial confinement fusion.
• R. Yan, +4 authors F. Tsung
• Physics, Medicine
Physical review letters
• 2012
A new hot-electron generation mechanism in two-plasmon-decay instabilities is described based on a series of 2D, long-term (~10 ps) particle-in-cell and fluid simulations under parameters relevant to
Nonlinear transition from convective to absolute Raman instability with trapped electrons and inflationary growth of reflectivity
• Y. X. Wang
• Physics
Physics of Plasmas
• 2018
We propose a nonlinear mechanism for transition from convective to absolute in stimulated Raman backscattering instability due to the effect of trapped particles in the plasma wave. Convective
Mitigation of stimulated Raman scattering in the kinetic regime by external magnetic fields
• Physics
Physical Review E
• 2018
We show via particle-in-cell simulations that small normalized magnetic fields ($\omega_c/\omega_p \ll 1$) applied perpendicularly to a light wave can significantly modify the evolution of backward
Thresholds of absolute two-plasmon-decay and stimulated Raman scattering instabilities driven by multiple broadband lasers
• Physics
Physics of Plasmas
• 2021
Thresholds for the absolute stimulated Raman scattering (SRS) and two-plasma decay (TPD) instabilities driven by multiple broadband laser beams are evaluated using 3D simulations at conditions