Cover Image

Spatial and temporal coherence properties of single free-electron laser pulses

The experimental characterization of the spatial and temporal coherence properties of the free-electron laser in Hamburg (FLASH) at a wavelength of 8.0 nm is presented. Double pinhole diffraction patterns of single femtosecond pulses focused to a size of about 10×10 μm2 were measured. A transverse c...

Full description

Saved in:
Bibliographic Details
Main Authors: Singer, Andrej (Author) , Sorgenfrei, F. (Author) , Mancuso, A. P. (Author) , Gerasimova, N. (Author) , Yefanov, O. M. (Author) , Gulden, J. (Author) , Gorniak, Thomas (Author) , Senkbeil, Tobias (Author) , Sakdinawat, A. (Author) , Liu, Y. (Author) , Attwood, D. (Author) , Dziarzhytski, S. (Author) , Mai, D. D. (Author) , Treusch, R. (Author) , Weckert, E. (Author) , Salditt, T. (Author) , Rosenhahn, Axel (Author) , Wurth, Wilfried (Author) , Vartanyants, I. A. (Author)
Format: Article (Journal)
Language:English
Published: 17 Jul 2012
In: Optics express
Year: 2012, Volume: 20, Issue: 16, Pages: 17480-17495
ISSN:1094-4087
DOI:10.1364/OE.20.017480
Online Access:Verlag, Volltext: https://doi.org/10.1364/OE.20.017480
Verlag, Volltext: http://www.opticsinfobase.org/oe/viewmedia.cfm?uri=oe-20-16-17480&seq=0
Get full text
Author Notes:A. Singer, F. Sorgenfrei, A.P. Mancuso, N. Gerasimova, O.M. Yefanov, J. Gulden, T. Gorniak, T. Senkbeil, A. Sakdinawat, Y. Liu, D. Attwood, S. Dziarzhytski, D.D. Mai, R. Treusch, E. Weckert, T. Salditt, A. Rosenhahn, W. Wurth, and I.A. Vartanyants
Description
Summary:The experimental characterization of the spatial and temporal coherence properties of the free-electron laser in Hamburg (FLASH) at a wavelength of 8.0 nm is presented. Double pinhole diffraction patterns of single femtosecond pulses focused to a size of about 10×10 μm2 were measured. A transverse coherence length of 6.2 ± 0.9 μm in the horizontal and 8.7 ± 1.0 μm in the vertical direction was determined from the most coherent pulses. Using a split and delay unit the coherence time of the pulses produced in the same operation conditions of FLASH was measured to be 1.75 ± 0.01 fs. From our experiment we estimated the degeneracy parameter of the FLASH beam to be on the order of 1010 to 1011, which exceeds the values of this parameter at any other source in the same energy range by many orders of magnitude.
Item Description:Gesehen am 20.08.2019
Physical Description:Online Resource
ISSN:1094-4087
DOI:10.1364/OE.20.017480

Similar Items