28-fs electron pulses for atomic-scale diffraction

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2015
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Gliserin, Alexander
Walbran, Matthew
Krausz, Ferenc
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Visualizing the rearrangement of atoms in a wide range of molecular and condensed-matter systems requires resolving picometer displacements on a ten-femtosecond time scale. Here we demonstrate the compression of single-electron pulses with a de Broglie wavelength of 0.08 ångström to a duration of 28±5 femtoseconds (full width at half maximum) or 12±2 femtoseconds (standard deviation), substantially shorter than any laser pulses involved. Atomic resolution diffraction from a complex organic molecule is obtained with good signalto- noise ratio within a data acquisition period of minutes. The electron-laser timing is found to be stable within 5 fs (standard deviation) over several hours, allowing pump-probe diffraction at repetitive excitation. These measurements show the feasibility of laserpump/ electron-probe scans that can resolve the fastest atomic motions relevant in reversible condensed matter transformations and organic chemistry.

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ISO 690GLISERIN, Alexander, Matthew WALBRAN, Ferenc KRAUSZ, Peter BAUM, 2015. 28-fs electron pulses for atomic-scale diffraction
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@unpublished{Gliserin2015elect-51898,
  year={2015},
  title={28-fs electron pulses for atomic-scale diffraction},
  author={Gliserin, Alexander and Walbran, Matthew and Krausz, Ferenc and Baum, Peter},
  note={Published version: https://dx.doi.org/10.1038/ncomms9723}
}
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Published version: https://dx.doi.org/10.1038/ncomms9723
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