论文标题
透视图:使用超快低频激光器,X射线游离电子激光器和电子脉冲对分子动力学的超快成像
Perspective: Ultrafast Imaging of Molecular Dynamics Using Ultrafast Low-Frequency Lasers, X-ray Free Electron Laser and Electron Pulses
论文作者
论文摘要
高时空分辨率和亮度的要求是成像原子运动和制作分子电影的巨大挑战。 Ultrabright桌面激光器,X射线和电子源的重要突破已使化学过程中不断发展的分子结构的直接成像。以及准备超快激光和电子脉冲的最新实验进步,配备了分子成像,并分辨率分辨率分辨率。该观点介绍了分子动力学多功能成像方法的概述。高阶谐波产生成像和光电子衍射成像基于激光诱导的电离和脱落过程。库仑爆炸成像通过检测碎片离子的动量向量来检索分子结构信息。衍射成像编码互惠空间中的分子结构和电子信息。我们还介绍了这些超快成像方法的各种应用在解决激光诱导的核和电子动力学中。
The requirement of high space-time resolution and brightness is a great challenge for imaging atomic motion and making molecular movies. Important breakthroughs in ultrabright tabletop laser, x-ray and electron sources have enabled the direct imaging of evolving molecular structures in chemical processes. And recent experimental advances in preparing ultrafast laser and electron pulses equipped molecular imaging with femtosecond time resolution. This Perspectives present an overview of versatile imaging methods of molecular dynamics. High-order harmonic generation imaging and photoelectron diffraction imaging are based on laser-induced ionization and rescattering processes. Coulomb explosion imaging retrieves molecular structural information by detecting the momentum vectors of fragmented ions. Diffraction imaging encodes molecular structural and electronic information in reciprocal space. We also present various applications of these ultrafast imaging methods in resolving laser-induced nuclear and electronic dynamics.