期刊
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
卷 53, 期 24, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1361-6455/abc660
关键词
atomic and molecular physics; free electron lasers; fluorescence spectroscopy
资金
- Chemical Sciences, Geosciences and Biosciences Division, Office of Basic Energy Sciences, Office of Science, US Department of Energy [DE-SC0012376]
- Department of Energy, National Nuclear Security Administration Award [DE-NA0003842]
- Department of Energy, Office of Science, Office of Fusion Energy Sciences Award [DE-SC0018298]
- Deutsche Forschungsgemeinschaft [STI 125/19-2]
- project CALIPSOplus from the EU Framework Programme for Research and Innovation HORIZON 2020 [730872]
- U.S. Department of Energy (DOE) [DE-SC0018298] Funding Source: U.S. Department of Energy (DOE)
We report on the observation of time-resolved quantum beats in the helium fluorescence from the transition 1s3p -> 1s2s, where the initial state is excited by XUV free electron laser radiation. The quantum beats originate from the Zeeman splitting of the magnetic substates due to an external magnetic field. We perform a systematic study of this effect and discuss the possibilities of studying this phenomenon in the XUV and x-ray regime.
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