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激光诱导电子衍射：用分子自身的一个电子对单个气相分子结构进行成像。

Laser-induced electron diffraction: Imaging of a single gas-phase molecular structure with one of its own electrons.

作者信息

Chirvi K, Biegert J

机构信息

ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels (Barcelona), Spain.

出版信息

Struct Dyn. 2024 Aug 30;11(4):041301. doi: 10.1063/4.0000237. eCollection 2024 Jul.

DOI:10.1063/4.0000237
PMID:39221452
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11365610/
Abstract

Among the many methods to image molecular structure, laser-induced electron diffraction (LIED) can image a single gas-phase molecule by locating all of a molecule's atoms in space and time. The method is based on attosecond electron recollision driven by a laser field and can reach attosecond temporal resolution. Implementation with a mid-IR laser and cold-target recoil ion-momentum spectroscopy, single molecules are measured with picometer resolution due to the keV electron impact energy without ensemble averaging or the need for molecular orientation. Nowadays, the method has evolved to detect single complex and chiral molecular structures in 3D. The review will touch on the various methods to discuss the implementations of LIED toward single-molecule imaging and complement the discussions with noteworthy experimental findings in the field.

摘要

在众多用于成像分子结构的方法中，激光诱导电子衍射（LIED）能够通过在空间和时间上定位分子的所有原子来对单个气相分子进行成像。该方法基于由激光场驱动的阿秒电子重碰撞，能够达到阿秒级的时间分辨率。通过中红外激光和冷靶反冲离子动量谱实现时，由于keV的电子撞击能量，单个分子能够以皮米分辨率进行测量，无需系综平均或分子取向。如今，该方法已发展到能够检测三维的单个复杂和手性分子结构。本综述将涉及各种方法，以讨论LIED在单分子成像方面的实现，并以该领域值得注意的实验结果对讨论加以补充。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d5e5/11365610/22c3f8118d69/SDTYAE-000011-041301_1-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d5e5/11365610/3b279eec88df/SDTYAE-000011-041301_1-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d5e5/11365610/6ebfeb0054a8/SDTYAE-000011-041301_1-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d5e5/11365610/d53edfcb3330/SDTYAE-000011-041301_1-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d5e5/11365610/7f15dc71f97a/SDTYAE-000011-041301_1-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d5e5/11365610/22c3f8118d69/SDTYAE-000011-041301_1-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d5e5/11365610/3b279eec88df/SDTYAE-000011-041301_1-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d5e5/11365610/6ebfeb0054a8/SDTYAE-000011-041301_1-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d5e5/11365610/d53edfcb3330/SDTYAE-000011-041301_1-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d5e5/11365610/7f15dc71f97a/SDTYAE-000011-041301_1-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d5e5/11365610/22c3f8118d69/SDTYAE-000011-041301_1-g005.jpg

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Attosecond electron-beam technology: a review of recent progress.阿秒电子束技术：近期进展综述
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Ultrafast Imaging of Molecular Dynamics Using Ultrafast Low-Frequency Lasers, X-ray Free Electron Lasers, and Electron Pulses.利用超快低频激光、X射线自由电子激光和电子脉冲对分子动力学进行超快成像
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Ultrafast Imaging of Molecules with Electron Diffraction.利用电子衍射对分子进行超快成像。
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