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Title: Simultaneous investigation of ultrafast structural dynamics and transient electric field by sub-picosecond electron pulses

The ultrafast structure dynamics and surface transient electric field, which are concurrently induced by laser excited electrons of an aluminum nanofilm, have been investigated simultaneously by the same transmission electron diffraction patterns. These two processes are found to be significantly different and distinguishable by tracing the time dependent changes of electron diffraction and deflection angles, respectively. This study also provides a practical means to evaluate simultaneously the effect of transient electric field during the study of structural dynamics under low pump fluence by transmission ultrafast electron diffraction.
Authors:
; ; ; ; ;  [1] ;  [1] ;  [2]
  1. Key Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China)
  2. (United States)
Publication Date:
OSTI Identifier:
22275563
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal Issue: 18; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ALUMINIUM; CRYSTAL STRUCTURE; ELECTRIC FIELDS; ELECTRON DIFFRACTION; ELECTRONS; LASER RADIATION; PULSES; SURFACES; TIME DEPENDENCE; TRANSIENTS