期刊
APPLIED PHYSICS LETTERS
卷 98, 期 25, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3602314
关键词
diffractometers; electron detection; electron diffraction; electron lenses; laser beam applications; lenses; photocathodes; relativistic electron beams; silicon
资金
- MEXT, Japan [1900210]
- Grants-in-Aid for Scientific Research [19001002, 21226022, 22246127] Funding Source: KAKEN
We have developed a compact ultrafast electron diffractometer, consisting of a laser-driven rf photocathode that generates 3.0 MeV probe electron pulses, three-stage lens optics, and a custom-built detector for relativistic electrons. High-quality single-shot transmission electron diffraction has been detected from 180-nm-thick Si single crystals, with an excellent special resolution for diffracted beams; the spot width of 0.02 A(-1) is obtained. The pulse width is estimated to be 100 fs in duration. Characteristics of the electron beam and other diffractometer features are discussed. (C) 2011 American Institute of Physics. [doi:10.1063/1.3602314]
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