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@PHDTHESIS{Anielski:441908,
      author       = {Anielski, Denis},
      othercontributors = {Küpper, Jochen and Rolles, Daniel},
      title        = {{U}ntersuchung der {P}hotoelektronen-{W}inkelverteilungen
                      von ausgerichteten {M}olekülen in der {G}asphase},
      school       = {Universität Hamburg},
      type         = {Dissertation},
      address      = {Hamburg},
      publisher    = {Verlag Deutsches Elektronen-Synchrotron},
      reportid     = {PUBDB-2020-02797, DESY-THESIS-2020-018},
      series       = {DESY-THESIS},
      pages        = {206},
      year         = {2020},
      note         = {Dissertation, Universität Hamburg, 2020},
      abstract     = {This work investigates if and how photoelectron diffraction
                      might become a suitable tool to measure structural changes
                      of small molecules in the gas-phase with femtosecond
                      temporal and angstrom spatial resolution. Molecular-frame
                      photoelectron angular distributions (MFPAD) of O(1$s$)-,
                      S(2$p$)- and F(1$s$)-electrons from carbonyl sulfide and
                      fluoromethane molecules have been measured in
                      photoelectron-photoion coincidence experiments at the
                      synchrotron radiation sources DORIS and PETRA III (kinetic
                      energy of photoelectrons: 16 eV < E$_{\mathrm{PE}}$ < 283
                      eV). It has been investigated which degree of molecular
                      orientation is necessary to observe a rich structure in the
                      MFPADs, which influence linearly and circularly polarized
                      photons have on MFPADs, and if MFPADs of photoelectrons with
                      a few 100 eV kinetic energy can be described by a simple
                      scattering model.The relation of the measured MFPADs to the
                      molecular structure was examined by MSX$\alpha$
                      calculations. At the free-electron laser FLASH,
                      S(2$p$)-photoelectron angular distributions of adiabatically
                      laser-aligned OCS molecules have been measured
                      (E$_{\mathrm{PE}}$=44 eV). In an IR-pump-XUV-probe
                      experiment at FLASH, molecular dynamics have been observed
                      in the photoelectron angular distributions with femtosecond
                      temporal resolution. The influence of the alignment and the
                      pump laser on molecules and on photoelectrons has been
                      discussed. This work indicates avenues how to reach the goal
                      of observing ultrafast molecular structural changes by
                      photoelectron diffraction.},
      cin          = {U HH / FS-PS / FS-CFEL-CMI / FS-FLASH / UNI/EXP / MPG},
      cid          = {$I:(DE-H253)U_HH-20120814$ / I:(DE-H253)FS-PS-20131107 /
                      I:(DE-H253)FS-CFEL-CMI-20220405 /
                      I:(DE-H253)FS-FLASH-20140814 / $I:(DE-H253)UNI_EXP-20120731$
                      / I:(DE-H253)MPG-20120806},
      pnm          = {6211 - Extreme States of Matter: From Cold Ions to Hot
                      Plasmas (POF3-621) / 6G2 - FLASH (POF3-622) / 6G3 - PETRA
                      III (POF3-622) / PHGS, VH-GS-500 - PIER Helmholtz Graduate
                      School $(2015_IFV-VH-GS-500)$},
      pid          = {G:(DE-HGF)POF3-6211 / G:(DE-HGF)POF3-6G2 /
                      G:(DE-HGF)POF3-6G3 / $G:(DE-HGF)2015_IFV-VH-GS-500$},
      experiment   = {EXP:(DE-H253)F-BL3-20150101 / EXP:(DE-H253)P-P04-20150101 /
                      EXP:(DE-H253)D-BW3-20150101},
      typ          = {PUB:(DE-HGF)3 / PUB:(DE-HGF)11},
      doi          = {10.3204/PUBDB-2020-02797},
      url          = {https://bib-pubdb1.desy.de/record/441908},
}