FLASH free-electron laser single-shot temporal diagnostic: terahertz-field-driven streaking

Ivanov, Rosen
Liu, Jia
Brenner, Guenter
Brachmanski, Maciej
Duesterer, Stefan

Open link

Publication date

January 2018

DOI

10.3204/PUBDB-2017-11726

Publisher

IUCr

Abstract

We report on the commissioning of a terahertz (THz) field driven streak camera installed at the free-electron laser FLASH at DESY in Hamburg, being able to deliver the photon pulse duration as well as the arrival time information with around 10 fs resolution for each single XUV FEL pulse. Pulse durations between 300 fs and <15 fs have been measured for different FLASH FEL settings. A comparison between the XUV pulse arrival time and the FEL electron bunch arrival time measured at the FLASH linac section - exhibit a correlation width of 20 fs rms, thus demonstrating the excellent operation stability of FLASH. In addition, the THz streaking setup was operated simultaneously to an alternative method to determine the FEL pulse duration based on...