期刊
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
卷 45, 期 5, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0953-4075/45/5/055601
关键词
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资金
- LCLS at the SLAC National Accelerator Laboratory
- Chemical Science Division of the US Department of Energy, Office of Basic Energy Sciences, Chemical, Geosciences, and Biological Divisions
- Office of Science, Office of Basic Energy Sciences, Chemical Sciences Division of the US Department of Energy [DE-AC02-05CH11231]
- NSF [PHY-1004778]
- Direct For Mathematical & Physical Scien
- Division Of Physics [0969322] Funding Source: National Science Foundation
Here we present the first angle-resolved, non-resonant (normal) Auger spectra for impulsively aligned nitrogen molecules. We have measured the angular pattern of Auger electron emission following K-shell photoionization by 1.1 keV photons from the Linac Coherent Light Source (LCLS). Using strong-field-induced molecular alignment to make molecular frame measurements is equally effective for both repulsive and quasi-bound final states. The capability to resolve Auger emission angular distributions in the molecular frame of reference provides a new tool for spectral assignments in congested Auger electron spectra that takes advantage of the symmetries of the final diction states. Based on our experimental results and theoretical predictions, we propose the assignment of the spectral features in the Auger electron spectrum.
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