Fig. 1. Beam deflection simulation results at different incident intensity: (a) Transverse flow and average intensity lower than filamentation threshold; (b) transverse flow and average intensity higher than filamentation threshold. x and yaxes of two figures corresponding to xand z axes of simulation coordinates, respectively. The spatial scale is in unit of laser wave length. The transverse flow speed equals ion sound speed.

Fig. 2. Comparison of spatial distribution of laser electric field between laser entrance and exit planes as beam deflection presents: (a) Laser entrance plane; (b) laser exit plane. x and y axes of two figures corresponding to x and y axes of simulation coordinates, respectively. The spatial scale is in unit of laser wave length. The transverse flow speed equals ion sound speed.

Fig. 3. Propagation of SSD beam at modulation frequency of 10^–3ω₀: (a) Corresponding simulation result at 11000 th laser periods; (b) corresponding simulation result at 13750 th laser periods. x and y axes of two figures corresponding to z and y axes of simulation coordinates, respectively. The spatial scale is in unit of laser wave length.

Fig. 4. Propagation of SSD beam with transverse flow at modulation frequency of 10^–3 ω₀: (a) Corresponding simulation result at 11000 th laser periods; (b) corresponding simulation result at 13750th laser periods. x and y axes of two figures corresponding to z and y axes of simulation coordinates, respectively. The spatial scale is in unit of laser wave length. The transverse flow speed equals ion sound speed.

Fig. 5. Propagation of SSD beam at modulation frequency of 10^–4ω₀: (a) No transverse flow; (b) the transverse flow speed equals ion sound speed. x and y axes of two figures corresponding to y and z axes of simulation coordinates, respectively. The spatial scale is in unit of laser wave length.

Table 1. Simulation results for filamentaion and beam deflection in the case of CPP smoothed beam Φ200.