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@ARTICLE{Patommel:318671,
      author       = {Patommel, Jens and Klare, Susanne and Hoppe, Robert and
                      Ritter, Stephan and Samberg, Dirk and Wittwer, Felix and
                      Jahn, Andreas and Richter, Karola and Wenzel, Christian and
                      Bartha, Johann W. and Scholz, Maria and Seiboth, Frank and
                      Boesenberg, Ulrike and Falkenberg, Gerald and Schroer,
                      Christian G.},
      title        = {{F}ocusing hard x rays beyond the critical angle of total
                      reflection by adiabatically focusing lenses},
      journal      = {Applied physics letters},
      volume       = {110},
      number       = {10},
      issn         = {1077-3118},
      address      = {Melville, NY},
      publisher    = {American Inst. of Physics},
      reportid     = {PUBDB-2017-01321},
      pages        = {101103},
      year         = {2017},
      note         = {Verbundprojekte konnten oben nicht angegeben werden:
                      05K10OD1, 05K13OD4},
      abstract     = {In response to the conjecture that the numerical aperture
                      of x-ray optics is fundamentally limited by the critical
                      angle of total reflection [Bergemann et al., Phys. Rev.
                      Lett. 91, 204801 (2003)], the concept of adiabatically
                      focusing refractive lenses was proposed to overcome this
                      limit [Schroer and Lengeler, Phys. Rev. Lett. 94, 054802
                      (2005)]. We present an experimental realization of these
                      optics made of silicon and demonstrate that they indeed
                      focus 20 keV x rays to a 18.4 nm focus with a numerical
                      aperture of 1.73(9) × 10$^{−3}$ that clearly exceeds
                      the critical angle of total reflection of 1.55 mrad.},
      cin          = {FS-PETRA / FS-PE / DOOR},
      ddc          = {530},
      cid          = {I:(DE-H253)FS-PETRA-20140814 / I:(DE-H253)FS-PE-20120731 /
                      I:(DE-H253)HAS-User-20120731},
      pnm          = {6G3 - PETRA III (POF3-622) / 6214 - Nanoscience and
                      Materials for Information Technology (POF3-621) / VH-VI-403
                      - In-Situ Nano-Imaging of Biological and Chemical Processes
                      $(2015_IFV-VH-VI-403)$},
      pid          = {G:(DE-HGF)POF3-6G3 / G:(DE-HGF)POF3-6214 /
                      $G:(DE-HGF)2015_IFV-VH-VI-403$},
      experiment   = {EXP:(DE-H253)P-P06-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000397871800003},
      doi          = {10.1063/1.4977882},
      url          = {https://bib-pubdb1.desy.de/record/318671},
}