% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Pozzi:878149,
      author       = {Pozzi, Giulio and Grillo, Vincenzo and Lu, Peng-Han and
                      Tavabi, Amir H. and Karimi, Ebrahim and Dunin-Borkowski,
                      Rafal E.},
      title        = {{D}esign of electrostatic phase elements for sorting the
                      orbital angular momentum of electrons},
      journal      = {Ultramicroscopy},
      volume       = {208},
      issn         = {0304-3991},
      address      = {Amsterdam},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2020-02662},
      pages        = {112861 -},
      year         = {2020},
      abstract     = {The orbital angular momentum (OAM) sorter is a new electron
                      optical device for measuring an electron’s OAM. It is
                      based on two phase elements, which are referred to as the
                      “unwrapper” and “corrector” and are placed in
                      Fourier-conjugate planes in an electron microscope. The most
                      convenient implementation of this concept is based on the
                      use of electrostatic phase elements, such as a charged
                      needle as the unwrapper and a set of electrodes with
                      alternating charges as the corrector. Here, we use
                      simulations to assess the role of imperfections in such a
                      device, in comparison to an ideal sorter. We show that the
                      finite length of the needle and the boundary conditions
                      introduce astigmatism, which leads to detrimental cross-talk
                      in the OAM spectrum. We demonstrate that an improved setup
                      comprising three charged needles can be used to compensate
                      for this aberration, allowing measurements with a level of
                      cross-talk in the OAM spectrum that is comparable to the
                      ideal case.},
      cin          = {ER-C-1},
      ddc          = {570},
      cid          = {I:(DE-Juel1)ER-C-1-20170209},
      pnm          = {143 - Controlling Configuration-Based Phenomena (POF3-143)
                      / Q-SORT - QUANTUM SORTER (766970) / ESTEEM3 - Enabling
                      Science and Technology through European Electron Microscopy
                      (823717)},
      pid          = {G:(DE-HGF)POF3-143 / G:(EU-Grant)766970 /
                      G:(EU-Grant)823717},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:31670053},
      UT           = {WOS:000500934100003},
      doi          = {10.1016/j.ultramic.2019.112861},
      url          = {https://juser.fz-juelich.de/record/878149},
}