Hybrid real- and reciprocal-space full-field imaging with coherent illumination

We present a novel diffractive imaging method that harnesses a low-resolution real-space image to guide the phase retrieval. A computational algorithm is developed to utilise such prior knowledge as a real-space constraint in the iterative phase retrieval procedure. Numerical simulations and proof-o...

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Bibliographic Details
Published in:Journal of optics (2010) 2020-11, Vol.22 (11), p.115611
Main Authors: Li, Po-Nan, Wakatsuki, Soichi, Pianetta, Piero A, Liu, Yijin
Format: Article
Language:English
Subjects:
coherent diffraction imaging
iterative phase retrieval algorithms
x-ray imaging
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Summary:We present a novel diffractive imaging method that harnesses a low-resolution real-space image to guide the phase retrieval. A computational algorithm is developed to utilise such prior knowledge as a real-space constraint in the iterative phase retrieval procedure. Numerical simulations and proof-of-concept experiments are carried out, demonstrating our method's capability of reconstructing high-resolution details that are otherwise inaccessible with traditional phasing algorithms. With the present method, we formulate a conceptual design for the coherent imaging experiments at a next-generation x-ray light source.
ISSN:2040-8978
2040-8986
DOI:10.1088/2040-8986/abbeca