All-optical control and metrology of electron pulses

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2016
Autor:innen
Kealhofer, Catherine
Schneider, Waldemar
Ehberger, Dominik
Krausz, Ferenc
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European Union (EU): 647771
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Direct Visualization of Light-Driven Atomic-Scale Carrier Dynamics in Space and Time DIVI
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Science. 2016, 352(6284), pp. 429-433. ISSN 0036-8075. eISSN 1095-9203. Available under: doi: 10.1126/science.aae0003
Zusammenfassung

Short electron pulses are central to time-resolved atomic-scale diffraction and electron microscopy, streak cameras, and free-electron lasers. We demonstrate phase-space control and characterization of 5-picometer electron pulses using few-cycle terahertz radiation, extending concepts of microwave electron pulse compression and streaking to terahertz frequencies. Optical-field control of electron pulses provides synchronism to laser pulses and offers a temporal resolution that is ultimately limited by the rise-time of the optical fields applied. We used few-cycle waveforms carried at 0.3 terahertz to compress electron pulses by a factor of 12 with a timing stability of <4 femtoseconds (root mean square) and measure them by means of field-induced beam deflection (streaking). Scaling the concept toward multiterahertz control fields holds promise for approaching the electronic time scale in time-resolved electron diffraction and microscopy.

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ISO 690KEALHOFER, Catherine, Waldemar SCHNEIDER, Dominik EHBERGER, Andrey RYABOV, Ferenc KRAUSZ, Peter BAUM, 2016. All-optical control and metrology of electron pulses. In: Science. 2016, 352(6284), pp. 429-433. ISSN 0036-8075. eISSN 1095-9203. Available under: doi: 10.1126/science.aae0003
BibTex
@article{Kealhofer2016-04-22Allop-43256,
  year={2016},
  doi={10.1126/science.aae0003},
  title={All-optical control and metrology of electron pulses},
  number={6284},
  volume={352},
  issn={0036-8075},
  journal={Science},
  pages={429--433},
  author={Kealhofer, Catherine and Schneider, Waldemar and Ehberger, Dominik and Ryabov, Andrey and Krausz, Ferenc and Baum, Peter}
}
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