Ultrafast Quasi-Three-Dimensional Imaging

Abstract Understanding laser induced ultrafast process with complex three-dimensional (3D) geometrical and extreme property evolution offers unique platform to explore novel physical phenomena overcome manufacturing limitations. Ultrafast imaging has been considered as an effective tool due their exceptional spatiotemporal resolution ability. However, the current techniques single view actually projecting 3D information on two-dimensional plane, leading great loss, misunderstanding nature of process. Here, we propose a quasi-3D method describe further analyse spatial asymmetric plasma. The vertically polarization pulses are adopted illuminate reflection-transmission views, binarization employed extract contours, forming corresponding matrix. By rotating multiplying contour matrices obtained from dual image was reconstructed. It successfully unveils phase transition mechanisms elucidates diffraction occurring outside Furthermore, confirms plasma in picosecond plasma, which is hard acquire images. Our findings demonstrate that not only more comprehensive understanding dynamics than previous methods, but also widespread potential various fields such strong-field physics, fluid dynamics, cutting-edge manufacturing.