Imaging outside the box: Resolution enhancement in X-ray coherent diffraction imaging by extrapolation of diffraction patterns

Abstract

Coherent diffraction imaging is a high-resolution imaging technique whose potential can be greatly enhanced by applying the extrapolation method presented here. We demonstrate enhancement in resolution of a non-periodical object reconstructed from an experimental X-ray diffraction record which contains about 10% missing information, including the pixels in the center of the diffraction pattern. A diffraction pattern is extrapolated beyond the detector area and as a result, the object is reconstructed at an enhanced resolution and better agreement with experimental amplitudes is achieved. The optimal parameters for the iterative routine and the limits of the extrapolation procedure are discussed.

12 pages, 4 figures

References in corpus (7)

• X-ray image reconstruction from a diffraction pattern alone
• Solution to the twin image problem in holography
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Cited by in corpus (9)

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• Free log-likelihood as an unbiased metric for coherent diffraction imaging
• Anisotropic nano-scale resolution in 3D Bragg coherent diffraction imaging
• Application of iterative phase-retrieval algorithms to ARPES orbital tomography
• Algorithms and image formation in orbital tomography
• Imaging outside the box: Resolution enhancement in X-ray coherent diffraction imaging by extrapolation of diffraction patterns
• Reconstruction of missing information in diffraction patterns and holograms by iterative phase retrieval
• Resolution enhancement by extrapolation of coherent diffraction images: A quantitative study on the limits and a numerical study of non-binary and phase objects
• Phase retrieval methods applied to coherent imaging