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@ARTICLE{vonHaeften:600091,
      author       = {von Haeften, Klaus and Laarmann, Tim and Wabnitz, Hubertus
                      and Moeller, Thomas},
      title        = {{R}elaxation dynamics of $^3${H}e and $^4${H}e clusters and
                      droplets studied using near infrared and visible
                      fluorescence excitation spectroscopy},
      journal      = {Physical chemistry, chemical physics},
      volume       = {25},
      number       = {3},
      issn         = {1463-9076},
      address      = {Cambridge},
      publisher    = {RSC Publ.},
      reportid     = {PUBDB-2023-07744},
      pages        = {1863 - 1880},
      year         = {2023},
      note         = {Waiting for fulltext},
      abstract     = {The relaxation dynamics of electronically excited 3He and
                      4He clusters and droplets is investigated using
                      time-correlated near-infrared and visible (NIR/VIS)
                      fluorescence excitation spectroscopy. A rich data set
                      spanning a wide range of cluster and droplet sizes is
                      produced. The spectral features broadly follow the vacuum
                      ultraviolet excitation (VUV) spectra. However, when the
                      NIR/VIS spectra are normalised to the VUV fluorescence,
                      regions with distinctly different cluster size and isotope
                      dependence are identified, enabling deeper insight into the
                      relaxation mechanism. Particle density, location of
                      atomic-like states and their principal quantum number, n,
                      are found to play an important role in the relaxation. For
                      states with n = 3 and higher, only energy within the surface
                      region is transferred to excited atoms which are
                      subsequently ejected from the surface and fluoresce in
                      vacuum. For states with n = 2, energy from the entire region
                      within clusters and droplets is transferred to the surface,
                      leading to the ejection of excited atoms and excimers. Here,
                      the energy is transferred by excitation hopping, which
                      competes with radiative and non-radiative decay, making
                      ejection and NIR/VIS fluorescence inefficient in
                      increasingly larger droplets.},
      cin          = {DOOR ; HAS-User / FS-PS},
      ddc          = {540},
      cid          = {I:(DE-H253)HAS-User-20120731 / I:(DE-H253)FS-PS-20131107},
      pnm          = {631 - Matter – Dynamics, Mechanisms and Control
                      (POF4-631)},
      pid          = {G:(DE-HGF)POF4-631},
      experiment   = {EXP:(DE-H253)D-I-20150101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {36541224},
      UT           = {WOS:000900903400001},
      doi          = {10.1039/D2CP04594J},
      url          = {https://bib-pubdb1.desy.de/record/600091},
}