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Sharper images by focusing soft X-rays with photon sieves

Author

Listed:
  • L. Kipp

    (Institut für Experimentelle und Angewandte Physik, Universität Kiel)

  • M. Skibowski

    (Institut für Experimentelle und Angewandte Physik, Universität Kiel)

  • R. L. Johnson

    (Institut für Experimentalphysik, Universität Hamburg)

  • R. Berndt

    (Institut für Experimentelle und Angewandte Physik, Universität Kiel)

  • R. Adelung

    (Institut für Experimentelle und Angewandte Physik, Universität Kiel)

  • S. Harm

    (Institut für Experimentelle und Angewandte Physik, Universität Kiel)

  • R. Seemann

    (Niedmers & Seemann, European Patent Attorneys)

Abstract

Fresnel zone plates consisting of alternating transmissive and opaque circular rings can be used to focus X-rays1. The spatial resolution that can be achieved with these devices is of the order of the width of the outermost zone and is therefore limited by the smallest structure (20–40 nm) that can be fabricated by lithography today2. Here we show that a large number of pinholes distributed appropriately over the Fresnel zones make it possible to focus soft X-rays to spot sizes smaller than the diameter of the smallest pinhole. In addition, higher orders of diffraction and secondary maxima can be suppressed by several orders of magnitude. In combination with the next generation of synchrotron light sources (free-electron lasers) these ‘photon sieves’ offer new opportunities for high-resolution X-ray microscopy and spectroscopy in physical and life sciences.

Suggested Citation

  • L. Kipp & M. Skibowski & R. L. Johnson & R. Berndt & R. Adelung & S. Harm & R. Seemann, 2001. "Sharper images by focusing soft X-rays with photon sieves," Nature, Nature, vol. 414(6860), pages 184-188, November.
    • Handle: RePEc:nat:nature:v:414:y:2001:i:6860:d:10.1038_35102526
    DOI: 10.1038/35102526
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    Cited by:

    1. Jun He & Hong Liu & Dong Zhao & Jodhbir S. Mehta & Cheng-Wei Qiu & Fangwen Sun & Jinghua Teng & Kun Huang, 2024. "High-order diffraction for optical superfocusing," Nature Communications, Nature, vol. 15(1), pages 1-11, December.

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