Femtosecond electronic structure response to high intensity XFEL pulses probed by iron X-ray emission spectroscopy
Alonso-Mori, Roberto1; Sokaras, Dimosthenis1; Cammarata, Marco2; Ding, Yuantao1; Feng, Yiping1; Fritz, David1; Gaffney, Kelly J.1; Hastings, Jerome1; Kao, Chi-Chang1; Lemke, Henrik T.3
2020-10-08
发表期刊SCIENTIFIC REPORTS
ISSN2045-2322
卷号10期号:1
DOI10.1038/s41598-020-74003-1
摘要We report the time-resolved femtosecond evolution of the K-shell X-ray emission spectra of iron during high intensity illumination of X-rays in a micron-sized focused hard X-ray free electron laser (XFEL) beam. Detailed pulse length dependent measurements revealed that rapid spectral energy shift and broadening started within the first 10 fs of the X-ray illumination at intensity levels between 10(17) and 10(18) W cm(-2). We attribute these spectral changes to the rapid evolution of high-density photoelectron mediated secondary collisional ionization processes upon the absorption of the incident XFEL radiation. These fast electronic processes, occurring at timescales well within the typical XFEL pulse durations (i.e., tens of fs), set the boundary conditions of the pulse intensity and sample parameters where the widely-accepted 'probe-before-destroy' measurement strategy can be adopted for electronic-structure related XFEL experiments.
收录类别SCI ; SCIE
语种英语
资助项目U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences[DE-AC0276SF00515] ; DFG[SCHR 1137/1-1] ; DOE Fusion Energy Sciences[FWP 100182]
WOS研究方向Science & Technology - Other Topics
WOS类目Multidisciplinary Sciences
WOS记录号WOS:000577475100061
出版者NATURE RESEARCH
引用统计
文献类型期刊论文
条目标识符https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/123496
专题物质科学与技术学院
大科学中心_PI研究组_翁祖谦组
通讯作者Alonso-Mori, Roberto; Sokaras, Dimosthenis; Zhu, Diling
作者单位1.SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA;
2.Univ Rennes, CNRS, IPR Inst Phys Rennes, UMR 6251, F-35000 Rennes, France;
3.Paul Scherrer Inst, SwissFEL, CH-5232 Villigen, Switzerland;
4.Deutsch Elektronen Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany;
5.European XFEL, Holzkoppel 4, D-22869 Schenefeld, Germany;
6.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China;
7.Beijing Normal Univ, Dept Phys, Ctr Adv Quantum Studies, Beijing 100875, Peoples R China;
8.Beijing Normal Univ, Appl Opt Beijing Area Major Lab, Ctr Adv Quantum Studies, Beijing 100875, Peoples R China
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Alonso-Mori, Roberto,Sokaras, Dimosthenis,Cammarata, Marco,et al. Femtosecond electronic structure response to high intensity XFEL pulses probed by iron X-ray emission spectroscopy[J]. SCIENTIFIC REPORTS,2020,10(1).
APA Alonso-Mori, Roberto.,Sokaras, Dimosthenis.,Cammarata, Marco.,Ding, Yuantao.,Feng, Yiping.,...&Zhu, Diling.(2020).Femtosecond electronic structure response to high intensity XFEL pulses probed by iron X-ray emission spectroscopy.SCIENTIFIC REPORTS,10(1).
MLA Alonso-Mori, Roberto,et al."Femtosecond electronic structure response to high intensity XFEL pulses probed by iron X-ray emission spectroscopy".SCIENTIFIC REPORTS 10.1(2020).
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