Effect of density modulation on backward stimulated Raman Scattering in a laser-irradiated plasma
Physics of Plasmas AIP Publishing 24:3 (2017) 032118
Suppression of Stimulated Raman Scattering and Hot Electrons Generation due to Langmuir Decay Instability Cascade and Langmuir Collapse
ArXiv 1612.01252 (2016)
Abstract:
Backward stimulated Raman scattering (BSRS) with Langmuir decay instability (LDI) and Langmuir collapse has been researched by Vlasov simulation for the first time. The decay productions of LDI cascade and their evolution with time is clearly demonstrated, which occurs simultaneously with Langmuir collapse. The BSRS reflectivity will be decreased largely through LDI cascade and Langmuir collapse. In CH plasmas, when $T_i/T_e=1/3$, the Landau damping of the slow ion-acoustic wave (IAW) is lower than that in H plasmas. Therefore, the BSRS can be further suppressed through LDI cascade by the way of controlling the species of plasmas and ions ratio. These results give an effective mechanism to suppress the BSRS and hot electrons generation.Excitation of nonlinear ion acoustic waves in CH plasmas
Physics of Plasmas AIP Publishing 23:8 (2016) 082106
Fluid nonlinear frequency shift of nonlinear ion acoustic waves in multi-ion species plasmas in the small wave number region.
Physical review. E 94:2-1 (2016) 023205