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@ARTICLE{Schulz:207743,
      author       = {Schulz, Sebastian and Grguraš, I. and Behrens, C. and
                      Bromberger, H. and Costello, J. T. and Czwalinna, M. K. and
                      Felber, M. and Hoffmann, M. C. and Ilchen, M. and Liu,
                      Haiyun and Mazza, T. and Meyer, Michael and Pfeiffer, S. and
                      Prędki, P. and Schefer, S. and Schmidt, C. and Wegner, U.
                      and Schlarb, H. and Cavalieri, Adrian},
      title        = {{F}emtosecond all-optical synchronization of an {X}-ray
                      free-electron laser},
      journal      = {Nature Communications},
      volume       = {6},
      issn         = {2041-1723},
      address      = {London},
      publisher    = {Nature Publishing Group},
      reportid     = {PUBDB-2015-01441},
      pages        = {5938 - 5949},
      year         = {2015},
      note         = {OA},
      abstract     = {Many advanced applications of X-ray free-electron lasers
                      require pulse durations and time resolutions of only a few
                      femtoseconds. To generate these pulses and to apply them in
                      time-resolved experiments, synchronization techniques that
                      can simultaneously lock all independent components,
                      including all accelerator modules and all external optical
                      lasers, to better than the delivered free-electron laser
                      pulse duration, are needed. Here we achieve all-optical
                      synchronization at the soft X-ray free-electron laser FLASH
                      and demonstrate facility-wide timing to better than 30 fs
                      r.m.s. for 90 fs X-ray photon pulses. Crucially, our
                      analysis indicates that the performance of this optical
                      synchronization is limited primarily by the free-electron
                      laser pulse duration, and should naturally scale to the
                      sub-10 femtosecond level with shorter X-ray pulses.},
      cin          = {FLA / MPY / MSK},
      ddc          = {500},
      cid          = {I:(DE-H253)FLA-20120731 / I:(DE-H253)MPY-20120731 /
                      I:(DE-H253)MSK-20120731},
      pnm          = {631 - Accelerator R $\&$ D (POF3-631)},
      pid          = {G:(DE-HGF)POF3-631},
      experiment   = {EXP:(DE-H253)FLASH(machine)-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000348742700011},
      pubmed       = {pmid:25600823},
      doi          = {10.1038/ncomms6938},
      url          = {https://bib-pubdb1.desy.de/record/207743},
}