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@ARTICLE{Harmand:167439,
      author       = {Harmand, M. and Coffee, R. and Bionta, M. R. and Chollet,
                      M. and French, D. and Zhu, D. and Fritz, D. M. and Lemke, H.
                      T. and Medvedev, N. and Ziaja, B. and Toleikis, S. and
                      Cammarata, M.},
      title        = {{A}chieving few-femtosecond time-sorting at hard {X}-ray
                      free-electron lasers},
      journal      = {Nature photonics},
      volume       = {7},
      number       = {3},
      issn         = {1749-4893},
      address      = {London [u.a.]},
      publisher    = {Nature Publ. Group},
      reportid     = {DESY-2014-01791},
      pages        = {215 - 218},
      year         = {2013},
      note         = {© Macmillan Publishers Limited.; Post referee fulltext in
                      progress; Embargo 12 months from publication},
      abstract     = {Recently, few-femtosecond pulses have become available at
                      hard X-ray free-electron lasers. Coupled with the available
                      sub-10 fs optical pulses, investigations into
                      few-femtosecond dynamics are not far off. However, achieving
                      sufficient synchronization between optical lasers and X-ray
                      pulses continues to be challenging. We report a
                      ‘measure-and-sort’ approach, which achieves sub-10 fs
                      root-mean-squared (r.m.s.) error measurement at hard X-ray
                      FELs, far beyond the 100–200 fs r.m.s. jitter limitations.
                      This timing diagnostic, now routinely available at the Linac
                      Coherent Light Source (LCLS), is based on ultrafast
                      free-carrier generation in optically transparent materials.
                      Correlation between two independent measurements enables
                      unambiguous demonstration of ~6 fs r.m.s. error in reporting
                      the optical/X-ray delay, with single shot error suggesting
                      the possibility of reaching few-femtosecond resolution.},
      cin          = {FS-CFEL-3 / FS-FL / DOOR},
      ddc          = {530},
      cid          = {I:(DE-H253)FS-CFEL-3-20120731 / I:(DE-H253)FS-FL-20120731 /
                      I:(DE-H253)HAS-User-20120731},
      pnm          = {FS In-house research / external facilities (POF2-544)},
      pid          = {G:(DE-H253)POF2-Other-Beam-20130405},
      experiment   = {EXP:(DE-MLZ)External-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000316154700015},
      doi          = {10.1038/nphoton.2013.11},
      url          = {https://bib-pubdb1.desy.de/record/167439},
}