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  • Title: Sub-25-nm laboratory x-ray microscopy using a compound Fresnel zone plate.
    Author: von Hofsten O, Bertilson M, Reinspach J, Holmberg A, Hertz HM, Vogt U.
    Journal: Opt Lett; 2009 Sep 01; 34(17):2631-3. PubMed ID: 19724514.
    Abstract:
    Improving the resolution in x-ray microscopes is of high priority to enable future applications in nanoscience. However, high-resolution zone-plate optics often have low efficiency, which makes implementation in laboratory microscopes difficult. We present a laboratory x-ray microscope based on a compound zone plate. The compound zone plate utilizes multiple diffraction orders to achieve high resolution while maintaining reasonable efficiency. We analyze the illumination conditions necessary for this type of optics in order to suppress stray light and demonstrate microscopic imaging resolving 25 nm features.
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