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

Journal Article · Wed May 14 00:00:00 EDT 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4875659· OSTI ID:22275563

Li, Run-Ze; Zhu, Pengfei; Chen, Long; Chen, Jie; Sheng, Zheng-Ming; Zhang, Jie ^[1]; Cao, Jianming ^[1]

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1. Key Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China)

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.

• OSTI ID: 22275563
• Journal Information: Journal of Applied Physics, Vol. 115, Issue 18; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM
CRYSTAL STRUCTURE
ELECTRIC FIELDS
ELECTRON DIFFRACTION
ELECTRONS
LASER RADIATION
PULSES
SURFACES
TIME DEPENDENCE
TRANSIENTS