Speaker
Bin Li
Description
See the full Abstract at http://ocs.ciemat.es/EPS2018ABS/pdf/P5.2007.pdf
Numerical studies of beam smoothing methods and its influence on
filamentation instability
Bin Li, Zhanjun Liu, Liang Hao, Chunyang Zheng, Jiang Xiang
Institute of Applied Physics and Computational Mathematics (IAPCM), Beijing, China
Large scale filamentation instability in Hohlraum is investigated by a three dimensional
parallel laser plasma simulation code LAP3D [1] developed at IAPCM. The focus lies on
how to controlling the instability by spatial and temporal smoothing methods [2],
respectively.
Spatial smoothing method is illustrated by propagation of a beam smoothed by the
continuous phase plate (CPP) , the research of which includes as follows: 1) features of
filamentation instability when it develops [3] ; 2) the threshold of the instability for a CPP
beam; 3) influence of distribution of strong speckles on the instability; 4) conditions for the
onset of the beam deflection [4].
Spatial smoothing method is illustrated by propagation of a beam smoothed by the
spectral dispersion smoothing (SSD), the research of which includes as follows: 1) influence
of modulated frequency on the beam propagation [5]; 2) the threshold of filamentation
instability for such a beam.
REFERENCES
[1] Xiaoyan Hu, Liang Hao, Zhanjun Liu, Chunyang Zheng, Bin Li, Hong Guo, AIP
ADVANCES, 5,8(2015).
[2] John Lindl, Phys Plasmas, 2, 11(1995).
[3] Bin Li, Xiaoyan Hu, Chunyang Zheng, Zhanjun Liu, High Power Laser and Particle
Beams,28,11(2016).
[4] Bin Li, Zhanjun Liu, Chunyang Zheng, Xiaoyan Hu, High Power Laser and Particle
Beams,26,12(2014).
[5] Bin Li, Zhanjun Liu, Liang Hao, Xiaoyan Hu, Chunyang Zheng, Jiang Xiang, Chinese
Journal of Lasers, 2017,44(12):1201004.
