53-attosecond X-ray pulses reach the carbon K-edge

被引：0
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作者：
Jie Li
Xiaoming Ren
Yanchun Yin
Kun Zhao
Andrew Chew
Yan Cheng
Eric Cunningham
Yang Wang
Shuyuan Hu
Yi Wu
Michael Chini
Zenghu Chang
机构：
[1] University of Central Florida,Institute for the Frontier of Attosecond Science and Technology, CREOL
[2] Institute of Physics,Beijing National Laboratory for Condensed Matter Physics
[3] Chinese Academy of Sciences,Department of Physics
[4] University of Central Florida,undefined
来源：
Nature Communications | / 8卷
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摘要：
The motion of electrons in the microcosm occurs on a time scale set by the atomic unit of time—24 attoseconds. Attosecond pulses at photon energies corresponding to the fundamental absorption edges of matter, which lie in the soft X-ray regime above 200 eV, permit the probing of electronic excitation, chemical state, and atomic structure. Here we demonstrate a soft X-ray pulse duration of 53 as and single pulse streaking reaching the carbon K-absorption edge (284 eV) by utilizing intense two-cycle driving pulses near 1.8-μm center wavelength. Such pulses permit studies of electron dynamics in live biological samples and next-generation electronic materials such as diamond.
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