论文标题
光谱相干涉测量法直接电场重建的同步基辐射的重建
Spectral phase interferometry for direct electric-field reconstruction of synchrotron radiation
论文作者
论文摘要
通过使用光谱相干涉测量法进行直接电场重建（蜘蛛），通过相对论电子产生的紫外线和极端紫外电场的特征是。具有相变器的串联解散器会产生一对波长移动的波数据包，并有所延迟。用蜘蛛算法分析了两对波数据包之间的干涉图，该算法被广泛用于超短脉冲表征。结果，重建了10循环的正方形电场。波形对应于带有未驱动器加速的电子的辐射，该电子由10个永久磁体组成。
Ultraviolet and extreme ultraviolet electric-fields produced by relativistic electrons in an undulator of a synchrotron light source are characterized by using spectral phase interferometry for direct electric-field reconstruction (SPIDER). A tandem undulator with a phase shifter produces a pair of wavelength shifted wave packets with some delay. The interferogram between the pair of the wave packets is analyzed with a SPIDER algorithm, which is widely used for ultrashort pulse characterization. As a result, a 10-cycle square shaped electric-field is reconstructed. The waveform corresponds to the radiation from an electron accelerated with the undulator which consists of 10 periods of permanent magnets.
