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Appl. Phys. Lett. 95, 111911 (2009); http://dx.doi.org/10.1063/1.3226674 (3 pages)

Single-shot ultrafast electron diffraction with a laser-accelerated sub-MeV electron pulse

Shigeki Tokita, Shunsuke Inoue, Shinichiro Masuno, Masaki Hashida, and Shuji Sakabe

Advanced Research Center for Beam Science, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan and Department of Physics, Graduate School of Science, Kyoto University, Kitashirakawa, Sakyo, Kyoto 606-7501, Japan

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(Received 4 June 2009; accepted 24 August 2009; published online 17 September 2009)

We have demonstrated single-shot measurement of electron diffraction patterns for a single-crystal gold foil using 340 keV electron pulses accelerated by intense femtosecond laser pulses with an intensity of 2×1018 W/cm2. The measured electron beam profile is faithfully reproduced by the numerical simulation of the electron trajectory, providing evidence that the electron pulse spontaneously expands in time owing to the velocity spread produced in the acceleration process, but is not distorted in an irreversible nonlinear manner. This study shows that the laser acceleration is promising for the development of pulse compression methods for single-shot femtosecond electron diffraction.

© 2009 American Institute of Physics

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KEYWORDS and PACS

PACS

  • 61.05.J-

    Electron diffraction and scattering

  • 06.60.Jn

    High-speed techniques (microsecond to femtosecond)

ARTICLE DATA

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

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