FEL Pulse Duration Evolution along Undulators at FLASH

FEL Pulse Duration Evolution along Undulators at FLASH

Self-amplified spontaneous-emission (SASE) free-electron lasers (FELs) deliver ultrashort pulses with femtosecond durations. Due to the fluctuating nature of the radiation properties of SASE FELs, characterizing FEL pulses on a single-shot basis is necessary. Therefore, we use terahertz streaking to...

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Veröffentlicht in:Applied sciences 2022-07, Vol.12 (14), p.7048
Hauptverfasser: Bidhendi, Mahdi M., Bermudez Macias, Ivette J., Ivanov, Rosen, Yurkov, Mikhail V., Düsterer, Stefan
Format: Artikel
Sprache:eng
Schlagworte:
Bandwidths
Energy
Femtosecond pulses
Free electron lasers
Pulse duration
Radiation
SASE
Simulation
temporal diagnostic
THz streaking
XUV pulses
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Zusammenfassung:Self-amplified spontaneous-emission (SASE) free-electron lasers (FELs) deliver ultrashort pulses with femtosecond durations. Due to the fluctuating nature of the radiation properties of SASE FELs, characterizing FEL pulses on a single-shot basis is necessary. Therefore, we use terahertz streaking to characterize the temporal properties of ultrashort extreme ultraviolet pulses from the free-electron laser in Hamburg (FLASH). In this study, pulse duration as well as pulse energy are measured in a wavelength range from 8 to 34 nm as functions of undulators contributing to the lasing process. The results are compared to one-dimensional and three-dimensional, time-dependent FEL simulations.
ISSN:2076-3417
2076-3417
DOI:10.3390/app12147048