期刊
JOURNAL OF MODERN OPTICS
卷 62, 期 -, 页码 S34-S45出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/09500340.2015.1052028
关键词
X-ray scattering; nonlinear X-ray spectroscopy
类别
资金
- Helmholtz Zentrum Berlin
- BMBF Rontgen Angstrom Cluster project [05K12IP2]
- Helmholtz Virtual Institute Dynamic Pathways in Multidimensional Landscapes
- Volkswagen Stiftung
The ultrahigh peak brilliance available at X-ray free-electron lasers opens the possibility to transfer nonlinear spectroscopic techniques from the optical and infrared into the X-ray regime. Here, we present a conceptual treatment of nonlinear X-ray processes with an emphasis on stimulated resonant X-ray scattering as well as a quantitative estimate for the scaling of stimulated X-ray scattering cross sections. These considerations provide the order of magnitude for the required X-ray intensities to experimentally observe stimulated resonant X-ray scattering for photon energies ranging from the extreme ultraviolet to the soft and hard X-ray regimes. At the same time, the regime where stimulated processes can safely be ignored is identified. With this basis, we discuss prospects and implications for spectroscopy, scattering, and imaging experiments at X-ray free-electron lasers.
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