Intense Femtosecond Electron Pulses for Single-Shot Ultrafast Electron Diffraction and Electron Deflectometry (Prof. S. Sakabe)

  • Datum: 14.10.2014
  • Uhrzeit: 14:30 - 16:00
  • Vortragende(r): Professor Dr. Shuji Sakabe, University of Kyoto, Japan
  • Raum: Herbert Walther Lecture Hall
  • Gastgeber: MPQ
Time-resolved electron diffraction and electron deflectometry using femtosecond electron pulses are useful techniques for observing ultrafast changes in the atomic-scale structure of matter and in the electromagnetic fields near matter during physical phenomena.

A key issue in realizing single-shot ultrafast electron diffraction and electron deflectometry is the development of intense short electron pulse sources. Electrons accelerated by intense femtosecond laser pulses are promising for intense electron pulse sources. Our laboratory has been studying the physics of electron emission during and after laser-plasma interactions with the aim of developing higher intensity electron pulses. We have demonstrated femtosecond pulse compression of a laser-accelerated electron beam and a single shot diffraction image, directional intense electron emission from a metal wire target, and observed intense THz surface (Sommerfeld) wave traveling along the wire target with femtosecond electron deflectometry.

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