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Phase retrieval by coherent modulation imaging

Author

Listed:
  • Fucai Zhang

    (London Centre for Nanotechnology, University College London
    Research Complex at Harwell, Harwell Campus
    Southern University of Science and Technology)

  • Bo Chen

    (London Centre for Nanotechnology, University College London
    Research Complex at Harwell, Harwell Campus
    School of Materials Science and Engineering, Tongji University)

  • Graeme R. Morrison

    (London Centre for Nanotechnology, University College London
    Research Complex at Harwell, Harwell Campus)

  • Joan Vila-Comamala

    (Swiss Light Source, Paul Scherrer Institut)

  • Manuel Guizar-Sicairos

    (Swiss Light Source, Paul Scherrer Institut)

  • Ian K. Robinson

    (London Centre for Nanotechnology, University College London
    Research Complex at Harwell, Harwell Campus
    Brookhaven National Lab)

Abstract

Phase retrieval is a long-standing problem in imaging when only the intensity of the wavefield can be recorded. Coherent diffraction imaging is a lensless technique that uses iterative algorithms to recover amplitude and phase contrast images from diffraction intensity data. For general samples, phase retrieval from a single-diffraction pattern has been an algorithmic and experimental challenge. Here we report a method of phase retrieval that uses a known modulation of the sample exit wave. This coherent modulation imaging method removes inherent ambiguities of coherent diffraction imaging and uses a reliable, rapidly converging iterative algorithm involving three planes. It works for extended samples, does not require tight support for convergence and relaxes dynamic range requirements on the detector. Coherent modulation imaging provides a robust method for imaging in materials and biological science, while its single-shot capability will benefit the investigation of dynamical processes with pulsed sources, such as X-ray free-electron lasers.

Suggested Citation

  • Fucai Zhang & Bo Chen & Graeme R. Morrison & Joan Vila-Comamala & Manuel Guizar-Sicairos & Ian K. Robinson, 2016. "Phase retrieval by coherent modulation imaging," Nature Communications, Nature, vol. 7(1), pages 1-8, December.
  • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms13367
    DOI: 10.1038/ncomms13367
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    Cited by:

    1. Jeonghun Oh & Herve Hugonnet & YongKeun Park, 2023. "Non-interferometric stand-alone single-shot holographic camera using reciprocal diffractive imaging," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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