期刊
PHYSICAL REVIEW LETTERS
卷 108, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.108.063007
关键词
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资金
- U.S. Department of Energy Office of Basic Energy Sciences
- MEXT
- Munich-Centre for Advanced Photonics (MAP)
- SFI [07/IN.1/I1771]
- DOE/BES [DE-AC02-06CH11357, DE-FG02-04ER15614]
- NSF [PHY-1004778]
- Grants-in-Aid for Scientific Research [21350014, 23550017] Funding Source: KAKEN
Two-color (x-ray + infrared) electron spectroscopy is used for investigating laser-assisted KLL Auger decay following 1s photoionization of atomic Ne with few-femtosecond x-ray pulses from the Linac Coherent Light Source. In an angle-resolved experiment, the overall width of the laser-modified Auger-electron spectrum and its structure change significantly as a function of the emission angle. The spectra are characterized by a strong intensity variation of the sidebands revealing a gross structure. This variation is caused, as predicted by theory, by the interference of electrons emitted at different times within the duration of one optical cycle of the infrared dressing laser, which almost coincides with the lifetime of the Ne 1s vacancy.
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