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

The commissioning of a terahertz-field-driven streak camera installed at the free-electron laser (FEL) FLASH at DESY in Hamburg, being able to deliver photon pulse duration as well as arrival time information with ∼10 fs resolution for each single XUV FEL pulse, is reported. Pulse durations between...

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Detalles Bibliográficos
Autores principales: Ivanov, Rosen, Liu, Jia, Brenner, Günter, Brachmanski, Maciej, Düsterer, Stefan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2018
Materias:
Photondiag2017 Workshop
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5741118/
https://www.ncbi.nlm.nih.gov/pubmed/29271747
http://dx.doi.org/10.1107/S160057751701253X
Descripción
Sumario:The commissioning of a terahertz-field-driven streak camera installed at the free-electron laser (FEL) FLASH at DESY in Hamburg, being able to deliver photon pulse duration as well as arrival time information with ∼10 fs resolution for each single XUV FEL pulse, is reported. 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 exhibits a correlation width of 20 fs r.m.s., thus demonstrating the excellent operation stability of FLASH. In addition, the terahertz-streaking setup was operated simultaneously to an alternative method to determine the FEL pulse duration based on spectral analysis. FLASH pulse duration derived from simple spectral analysis is in good agreement with that from terahertz-streaking measurement.

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