Laboratorium für Physikalische Chemie, ETH Zürich, Vladimir-Prelog-Weg 2, HCI E 237, 8093 Zürich, Switzerland.
Institut für Theoretische Physik, Leibniz Universität Hannover, 30167 Hannover, Germany.
Nat Commun. 2017 Jun 15;8:15651. doi: 10.1038/ncomms15651.
Strong-field photoelectron holography and laser-induced electron diffraction (LIED) are two powerful emerging methods for probing the ultrafast dynamics of molecules. However, both of them have remained restricted to static systems and to nuclear dynamics induced by strong-field ionization. Here we extend these promising methods to image purely electronic valence-shell dynamics in molecules using photoelectron holography. In the same experiment, we use LIED and photoelectron holography simultaneously, to observe coupled electronic-rotational dynamics taking place on similar timescales. These results offer perspectives for imaging ultrafast dynamics of molecules on femtosecond to attosecond timescales.
强场光电全息术和激光诱导电子衍射（LIED）是两种用于探测分子超快动力学的强大新兴方法。然而，这两种方法都仅限于静态系统和强场电离引起的核动力学。在这里，我们使用光电全息术将这些很有前途的方法扩展到分子中纯电子价壳层动力学的成像。在同一个实验中，我们同时使用 LIED 和光电全息术来观察在相似时间尺度上发生的耦合电子-旋转动力学。这些结果为在飞秒到阿秒时间尺度上对分子超快动力学进行成像提供了前景。
