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@PHDTHESIS{Rompotis:295216,
      author       = {Rompotis, Dimitrios},
      othercontributors = {Drescher, Markus},
      title        = {{A} single-shot nonlinear autocorrelation approach for
                      time-resolved physics in the vacuum ultraviolet spectral
                      range},
      issn         = {1435-8085},
      school       = {Universität Hamburg},
      type         = {Dissertation},
      address      = {Hamburg},
      publisher    = {Verlag Deutsches Elektronen-Synchrotron},
      reportid     = {PUBDB-2016-01132, DESY-THESIS-2016-002},
      series       = {DESY-THESIS},
      pages        = {179},
      year         = {2016},
      note         = {Dissertation, Universität Hamburg, 2015},
      abstract     = {In this work, a single-shot temporal metrology scheme
                      operating in the vacuum-extreme ultraviolet spectral range
                      has been designed and experimentally implemented. Utilizing
                      an anti-collinear geometry, a second-order intensity
                      autocorrelation measurement of a vacuum ultraviolet pulse
                      can be performed by encoding temporal delay information on
                      the beam propagation coordinate. An ion-imaging
                      time-of-flight spectrometer, offering micrometer resolution
                      has been set-up for this purpose. This instrument enables
                      the detection of a magnified image of the spatial
                      distribution of ions exclusively generated by direct two
                      photon absorption in the combined counter-propagating pulse
                      focus and thus obtain the second-order intensity
                      autocorrelation measurement on a single-shot
                      basis.Additionally, an intense VUV light source based on
                      high-harmonic generation has been experimentally realized.
                      It delivers intense sub-20 fs Ti:Sa fifth-harmonic pulses
                      utilizing a loose-focusing geometry in a long Ar gas cell.
                      The VUV pulses centered at 161.8 nm reach pulse energies of
                      1.1 μJ per pulse, while the corresponding pulse duration is
                      measured with a second-order, fringe-resolved
                      autocorrelation scheme to be 18 ± 1 fs on average.
                      Non-resonant, two-photon ionization of Kr and Xe and
                      three-photon ionization of Ne verify the fifth-harmonic
                      pulse intensity and indicate the feasibility of multi-photon
                      VUV pump/VUV probe studies of ultrafast atomic and molecular
                      dynamics. Finally, the extended functionality of the
                      counter-propagating pulse metrology approach is demonstrated
                      by a single-shot VUV pump/VUV probe experiment aiming at the
                      investigation of ultrafast dissociation dynamics of
                      molecular oxygen excited in the Schumann-Runge continuum at
                      162 nm.},
      cin          = {UNI/EXP / FS-FL},
      cid          = {$I:(DE-H253)UNI_EXP-20120731$ / I:(DE-H253)FS-FL-20120731},
      pnm          = {6211 - Extreme States of Matter: From Cold Ions to Hot
                      Plasmas (POF3-621)},
      pid          = {G:(DE-HGF)POF3-6211},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)3 / PUB:(DE-HGF)29 / PUB:(DE-HGF)11},
      doi          = {10.3204/DESY-THESIS-2016-002},
      url          = {https://bib-pubdb1.desy.de/record/295216},
}