飞秒
超快电子衍射
超短脉冲
电子
外差(诗歌)
光学
电子衍射
外差探测
物理
材料科学
衍射
原子物理学
激光器
声学
量子力学
作者
Shichao Sun,Haiwang Yong,Vladimir Chernyak,Shaul Mukamel
标识
DOI:10.1103/physrevlett.133.093001
摘要
The direct imaging of time-evolving molecular charge densities on atomistic scale and at femtosecond resolution has long been an elusive task. In this theoretical study, we propose a self-heterodyne electron diffraction technique based on single electron pulses. The electron is split into two beams, one passes through the sample and its interference with the second beam produces a heterodyne diffraction signal that images the charge density. Application to probing the ultrafast electronic dynamics in Mg-phthalocyanine demonstrates its potential for imaging chemical dynamics.
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