期刊
PHYSICAL REVIEW LETTERS
卷 110, 期 13, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.110.134801
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资金
- DOE [DE-AC02-76SF00515]
With an eye toward extending optical wave-mixing techniques to the x-ray regime, we present the first experimental demonstration of a two-color x-ray free-electron laser at the Linac Coherent Light Source. We combine the emittance-spoiler technique with a magnetic chicane in the undulator section to control the pulse duration and relative delay between two intense x-ray pulses and we use differently tuned canted pole undulators such that the two pulses have different wavelengths as well. Two schemes are shown to produce two-color soft x-ray pulses with a wavelength separation up to similar to 1.9% and a controllable relative delay up to 40 fs. DOI: 10.1103/PhysRevLett.110.134801
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