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@ARTICLE{Schmitt:453147,
      author       = {Schmitt, Annika T. and Joly, Yves and Schulze, Kai Sven and
                      Marx-Glowna, Berit and Uschmann, Ingo and Grabiger, Benjamin
                      and Bernhardt, Hendrik and Loetzsch, Robert and Juhin,
                      Amélie and Debray, Jérôme and Wille, Hans-Christian and
                      Yavaş, Hasan and Paulus, Gerhard G. and Röhlsberger, Ralf},
      title        = {{D}isentangling x-ray dichroism and birefringence via
                      high-purity polarimetry},
      journal      = {Optica},
      volume       = {8},
      number       = {1},
      issn         = {2334-2536},
      address      = {Washington, DC},
      publisher    = {OSA},
      reportid     = {PUBDB-2020-05021, arXiv:2003.00849},
      pages        = {56 -},
      year         = {2021},
      note         = {6 pages, 4 figures, 8 pages supplemental material (4
                      figures)},
      abstract     = {High-brilliance synchrotron radiation sources have opened
                      new avenues for x-ray polarization analysis that go far
                      beyond conventional polarimetry in the optical domain. With
                      linear x-ray polarizers in a crossed setting, polarization
                      extinction ratios down to 10$^{−10}$ can be achieved. This
                      renders the method sensitive to probe the tiniest optical
                      anisotropies that would occur, for example, in strong-field
                      quantum electrodynamics due to vacuum birefringence and
                      dichroism. Here we show that high-purity polarimetry can be
                      employed to reveal electronic anisotropies in condensed
                      matter systems with utmost sensitivity and spectral
                      resolution. Taking CuO and La$_2$CuO$_4$ as benchmark
                      systems, we present a full characterization of the
                      polarization changes across the Cu K-absorption edge and
                      their separation into dichroic and birefringent
                      contributions. At diffraction-limited synchrotron radiation
                      sources and x-ray lasers, where polarization extinction
                      ratios of 10$^{−12}$ can be achieved, our method has the
                      potential to assess birefringence and dichroism of the
                      quantum vacuum in extreme electromagnetic fields.},
      cin          = {DOOR ; HAS-User / FS-PS / Uni Jena / FS-PET-S},
      ddc          = {620},
      cid          = {I:(DE-H253)HAS-User-20120731 / I:(DE-H253)FS-PS-20131107 /
                      $I:(DE-H253)Uni_Jena-20181204$ /
                      I:(DE-H253)FS-PET-S-20190712},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / 6G3 - PETRA III (DESY) (POF4-6G3) /
                      DFG project 416700351 - Hochpräzise Röntgenpolarimeter aus
                      Diamant für den Nachweis der Vakuumdoppelbrechung
                      (416700351)},
      pid          = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G3 /
                      G:(GEPRIS)416700351},
      experiment   = {EXP:(DE-H253)P-P01-20150101},
      typ          = {PUB:(DE-HGF)16},
      eprint       = {2003.00849},
      howpublished = {arXiv:2003.00849},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2003.00849;\%\%$},
      UT           = {WOS:000610085000009},
      doi          = {10.1364/OPTICA.410357},
      url          = {https://bib-pubdb1.desy.de/record/453147},
}