Figure 2
(a) Interferogram and (d) shadowgraph of the plasma cloud without the obstacle, taken at a delay time of 8 ns. (b) and (c) are the interferograms with the obstacle taken at 5 ns and 14 ns, respectively. (e) and (f) are the shadowgraphs with the obstacle taken at 5 ns and 6 ns, respectively. The purple arrows represent the main laser beams. The white lines indicate the original positions of the Cu planar target. The blue solid circles indicate the cross section of the obstacle.
