期刊
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
卷 53, 期 18, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-6455/ab9c38
关键词
temporal diagnostic; XUV pulses; SASE FEL; FLASH; THz streaking; single cycle terahertz pulse
资金
- excellence cluster `The Hamburg Center for Ultrafast Imaging-Structure, Dynamics and Control of Matter at the Atomic Scale' (DFG)-EXC 1074 [194651731]
- DFG Forschergruppe FOR 1789
- DESY
- SQS research group of the European XFEL (Hamburg)
- [SFB925-A1]
Ultra-short extreme ultraviolet pulses from the free-electron laser FLASH are characterized using terahertz-field driven streaking. Measurements at different ultra-short extreme ultraviolet wavelengths and pulse durations as well as numerical simulations were performed to explore the application range and accuracy of the method. For the simulation of streaking, a standard classical approach is used which is compared to quantum mechanical theory, based on strong field approximation. Various factors limiting the temporal resolution of the presented terahertz streaking setup are investigated and discussed. Special attention is paid to the cases of very short (similar to 10 fs) and long (up to similar to 350 fs) pulses.
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