Matter and Radiation at Extremes, 2017, 2 (4): 190, Published Online: Jan. 17, 2018
Stimulated Raman scattering excited by incoherent light in plasma
Stimulated Raman scattering Stimulated Raman scattering Instability suppression Instability suppression Incoherent light Incoherent light Inertial confinement fusion Inertial confinement fusion
Abstract
Stimulated Raman scattering (SRS) excited by incoherent light is studied via particle-in-cell simulations. It is shown that a large bandwidth of incoherent light can reduce the growth of SRS and electron heating considerably in the linear stage. However, different components of the incoherent light can be coupled by the Langmuir waves, so that stimulated Raman backward scattering can develop. When the bandwidth of incoherent light is larger than the Langmuir wave frequency, forward SRS can be seeded between different components of the incoherent light. The incoherent light can only increase the time duration for nonlinear saturation but cannot diminish the saturation level obviously.
Yao Zhao, Suming Weng, Min Chen, Jun Zheng, Hongbin Zhuo, Zhengming Sheng. Stimulated Raman scattering excited by incoherent light in plasma[J]. Matter and Radiation at Extremes, 2017, 2(4): 190.