1. FEL Pulse Duration Evolution along Undulators at FLASH.
- Author
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Bidhendi, Mahdi M., Bermudez Macias, Ivette J., Ivanov, Rosen, Yurkov, Mikhail V., and Düsterer, Stefan
- Subjects
FREE electron lasers ,FEMTOSECOND pulses ,LASERS - Abstract
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. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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