Journal
PHYSICAL REVIEW LETTERS
Volume 105, Issue 21, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.105.215004
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Funding
- Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan [18206006, 20760032, 22760038]
- Grants-in-Aid for Scientific Research [22760038, 18206006, 22654050, 20760032] Funding Source: KAKEN
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We report the first experimental demonstration of longitudinal compression of laser-accelerated electron pulses. Accelerated by a femtosecond laser pulse with an intensity of 10(18) W/cm(2), an electron pulse with an energy of around 350 keV and a relative momentum spread of about 10(-2) was compressed to a 500-fs pulse at a distance of about 50 cm from the electron source by using a magnetic pulse compressor. This pulse was used to generate a clear diffraction pattern of a gold crystal in a single shot. This method solves the space-charge problem in ultrafast electron diffraction.
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