期刊
APPLIED PHYSICS LETTERS
卷 97, 期 6, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3478005
关键词
electron diffraction; gold; high-speed optical techniques; melting
We report the experimental demonstration of time-resolved relativistic electron diffraction. Single shot diffraction patterns from a single crystal gold sample were recorded using ultrashort 3.5 MeV electron bunches from a radio frequency photoinjector. By scanning the pump pulse time-delay, we studied the Bragg peaks amplitude change due to the laser-induced melting of the sample. The observed time scale matches the one predicted using a simple two temperature model of the heating of the thin foil. Time-resolved relativistic electron diffraction using megaelectronvolt electron beams with 10(7) particles in 100 fs bunch length opens exciting possibilities in ultrafast structural dynamics. (C) 2010 American Institute of Physics. [doi:10.1063/1.3478005]
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