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@PHDTHESIS{Lohse:634781,
      author       = {Lohse, Leon Merten},
      othercontributors = {Salditt, Tim and Roehlsberger, Ralf},
      title        = {{N}uclear {R}esonances in {X}-ray {W}aveguides},
      school       = {Georg-August-Universität Göttingen},
      type         = {Dissertation},
      address      = {Göttingen},
      reportid     = {PUBDB-2025-02605},
      pages        = {192},
      year         = {2025},
      note         = {Dissertation, Georg-August-Universität Göttingen, 2025},
      abstract     = {Hard X-rays generally only interact very weakly with
                      matter, so that tissue, for example, is quite transparent to
                      them. However, this makes the controlled manipulation of
                      X-ray light particularly challenging. While many
                      functionalities for visible and infrared light can nowadays
                      be accommodated in integrated optical components on a
                      microscopic scale on semiconductor substrates, macroscopic
                      crystal optics are usually still required for X-ray light,
                      despite the substantially smaller wavelength. Yet, similar
                      to fiber optics for visible light, X-ray waveguides can
                      guide X-ray light, whereby it is confined in one or two
                      dimensions to a length scale of just a few 10 nm. This
                      dissertation deals fundamentally with X-ray waveguides and
                      the interaction of X-ray light with resonant quantum
                      emitters within them. In particular, Mössbauer isotopes
                      such as iron-57 are considered, whose atomic nuclei have
                      very long-lived metastable states that can be excited with
                      X-rays. On the one hand, a comprehensive theory of the
                      nano-optics of X-ray waveguides is developed. On the other
                      hand, first experiments are presented in which Mössbauer
                      isotopes were embedded within X-ray waveguides and excited
                      with focused synchrotron radiation. Finally, a Young's
                      double-slit experiment on the nanometer scale is shown
                      (after Thomas Young, who received his doctorate in
                      Göttingen in 1796), with which the resonant phase shift of
                      atomic nuclei can be precisely measured. These represent
                      important steps towards the manipulation of x-ray light on
                      the nanometer scale.},
      cin          = {FS-PS},
      cid          = {I:(DE-H253)FS-PS-20131107},
      pnm          = {6G3 - PETRA III (DESY) (POF4-6G3) / FS-Proposal: I-20211677
                      (I-20211677) / FS-Proposal: I-20221193 (I-20221193) / SFB
                      1456 C03 - Intensitätskorrelationen in
                      Beugungsexperimenten: Faltung, Rekonstruktion und
                      Information (C03) (456847373) / DFG project
                      G:(GEPRIS)455815426 - Photonische Strukturen für
                      Röntgenstrahlen zur Kontrolle kooperativer Emission von
                      Mössbauerkernen (C04) (455815426) / DFG project
                      G:(GEPRIS)390858490 - EXC 2147: Komplexität und Topologie
                      in Quantenmaterialien (CT.QMAT) (390858490) / AIM, DFG
                      project G:(GEPRIS)390715994 - EXC 2056: CUI: Advanced
                      Imaging of Matter (390715994)},
      pid          = {G:(DE-HGF)POF4-6G3 / G:(DE-H253)I-20211677 /
                      G:(DE-H253)I-20221193 / G:(GEPRIS)456847373 /
                      G:(GEPRIS)455815426 / G:(GEPRIS)390858490 /
                      G:(GEPRIS)390715994},
      experiment   = {EXP:(DE-H253)P-P01-20150101},
      typ          = {PUB:(DE-HGF)11},
      url          = {https://bib-pubdb1.desy.de/record/634781},
}