阿秒
光激发
化学
超快电子衍射
衍射
电子
原子物理学
分子
电子结构
空间电荷
电荷(物理)
超短脉冲
再分配(选举)
分子物理学
电子衍射
物理
光学
激发态
量子力学
计算化学
政治学
有机化学
法学
激光器
政治
作者
Haiwang Yong,Shichao Sun,Bing Gu,Shaul Mukamel
摘要
We show how ultrafast gas-phase X-ray and electron diffraction signals can be combined to generate real-space movies of charge migration dynamics in molecules. Charge migration denotes short time electronic charge redistribution upon photoexcitation of molecules where the nuclei are frozen. In this regime, we identify a mixed electronic-nuclear interference term that can be cleanly singled out. Using the ground-state nuclear structure as a reference, the phase information in this signal allows its inversion to real space and the capture of electronic charge density movies on the attosecond time scale.
科研通智能强力驱动
Strongly Powered by AbleSci AI