阶段Diff-CUP的敏感性。的时空干涉图2.6挪威标准EMP LN晶体被条纹相机和电场和相位分布模型模拟,和相应的时间阶段平均在x方向上。水平标尺酒吧,300µm。垂直刻度酒吧、500 ps。b实验干涉图150 - ps传播EMP和相应的时间相关的边缘1 - 4。D是边缘1和4之间的空间距离。底部的插图正确显示的方法来计算传播时间,T, EMP的LN(右上角)。水平标尺栏,300µm。垂直刻度栏、50 ps。c量化的phase-sensitivity未编码的Diff-CUP诱导员工与不同的振幅在LN晶体。 Each curve represents a reconstructed pulse shape with a different amplitude, where the corresponding phase change is shown above the curve. Black arrows denote the pulse width of the EMP. d Spatiotemporal interferograms of a weak EMP propagating in the LN crystal. Left, unprocessed interferogram, i.e., control group. Middle, interferogram processed with the temporal correlation (TC) and template matching (TM) methods. Right, interferogram processed with the TC, TM, and differential approach. Black dashed lines denote the regions of the EMP. Horizontal scale bars, 300 µm. Vertical scale bars, 20 ps. e Reconstruction of the pulse shape of the weak EMP using the three interferograms in (d). Credit:自然通讯(2022)。DOI: 10.1038 / s41467 - 022 - 33002 - 8
