Journal Article PUBDB-2017-09033

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png
Single-shot Monitoring of Ultrafast Processes via X-ray Streaking at a Free Electron Laser

 ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;

2017
Macmillan London

Scientific reports 7(1), 7253 () [10.1038/s41598-017-07069-z]
 GO

This record in other databases:        

Please use a persistent id in citations: doi:  doi:

Abstract: The advent of x-ray free electron lasers has extended the unique capabilities of resonant x-ray spectroscopy techniques to ultrafast time scales. Here, we report on a novel experimental method that allows retrieving with a single x-ray pulse the time evolution of an ultrafast process, not only at a few discrete time delays, but continuously over an extended time window. We used a single x-ray pulse to resolve the laser-induced ultrafast demagnetisation dynamics in a thin cobalt film over a time window of about 1.6 ps with an excellent signal to noise ratio. From one representative single shot measurement we extract a spin relaxation time of (130 ± 30) fs with an average value, based on 193 single shot events of (113 ± 20) fs. These results are limited by the achieved experimental time resolution of 120 fs, and both values are in excellent agreement with previous results and theoretical modelling. More generally, this new experimental approach to ultrafast x-ray spectroscopy paves the way to the study of non-repetitive processes that cannot be investigated using traditional repetitive pump-probe schemes.

Classification:

Contributing Institute(s):
  1. MPSD (CFEL-QCM)
  2. DOOR-User (DOOR)
  3. FLASH Photonen-Diagnose und Steuerungen (FS-FLASH-D)
  4. Betreuung der Hochleistungslaser (FS-LA)
  5. European XFEL Projekt Team (Eur.XFEL)
Research Program(s):
  1. 6212 - Quantum Condensed Matter: Magnetism, Superconductivity (POF3-621) (POF3-621)
  2. 6G2 - FLASH (POF3-622) (POF3-622)
Experiment(s):
  1. FLASH Beamline BL2 (FLASH)

Appears in the scientific report 2017
Database coverage:
Medline ; Creative Commons Attribution CC BY 4.0 ; DOAJ ; OpenAccess ; BIOSIS Previews ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; IF >= 5 ; JCR ; NCBI Molecular Biology Database ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection ; Zoological Record
Click to display QR Code for this record

The record appears in these collections:
Private Collections > >CFEL > >MPSD > CFEL-QCM
Private Collections > >Extern > >HAS-User > HAS-User
Private Collections > >DESY > >FS > FS-FLASH-D
Private Collections > >DESY > >FS > FS-LA
Private Collections > >XFEL.EU > Eur.XFEL
Document types > Articles > Journal Article
Public records
Publications database
OpenAccess

 Record created 2017-08-09, last modified 2025-07-30


OpenAccess:
Download fulltext PDF Download fulltext PDF (PDFA)
Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)