Three-dimensional particle-in-cell simulations of laser channeling in fast ignition

2011 ◽  
Vol 18 (4) ◽  
pp. 042703 ◽  
Author(s):  
G. Li ◽  
R. Yan ◽  
C. Ren ◽  
J. Tonge ◽  
W. B. Mori
Keyword(s):  
Three Dimensional ◽  
Fast Ignition ◽  
Particle In Cell ◽  
Laser Channeling

Post-solitons and electron vortices generated by femtosecond intense laser interacting with uniform near-critical-density plasmas

2021 ◽  
Author(s):  
Dong-Ning Yue ◽  
Min Chen ◽  
Yao Zhao ◽  
Pan-Fei Geng ◽  
Xiao-Hui Yuan ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Critical Density ◽  
Laser Pulses ◽  
Intense Laser ◽  
Nonlinear Structures ◽  
Particle In Cell ◽  
Laser Propagation ◽  
Laser Driver ◽  
Linearly Polarized ◽  
Dimensional Simulation

Abstract Generation of nonlinear structures, such as stimulated Raman side scattering waves, post-solitons and electron vortices, during ultra-short intense laser pulse transportation in near-critical-density (NCD) plasmas are studied by using multi-dimensional particle-in-cell (PIC) simulations. In two-dimensional geometries, both P- and S- polarized laser pulses are used to drive these nonlinear structures and to check the polarization effects on them. In the S-polarized case, the scattered waves can be captured by surrounding plasmas leading to the generation of post-solitons, while the main pulse excites convective electric currents leading to the formation of electron vortices through Kelvin-Helmholtz instability (KHI). In the P-polarized case, the scattered waves dissipate their energy by heating surrounding plasmas. Electron vortices are excited due to the hosing instability of the drive laser. These polarization dependent physical processes are reproduced in two different planes perpendicular to the laser propagation direction in three-dimensional simulation with linearly polarized laser driver. The current work provides inspiration for future experiments of laser-NCD plasma interactions.

Three-dimensional particle-in-cell simulations of intense few-cycle pulse, multilayer interference coating interactions

2021 ◽  
Author(s):  
Joseph R. Smith ◽  
Simin Zhang ◽  
Charles Varin ◽  
Vitaly E. Gruzdev ◽  
Enam A. Chowdhury
Keyword(s):  
Three Dimensional ◽  
Particle In Cell ◽  
Interference Coating ◽  
Cycle Pulse
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