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Single-frame coherent diffraction imaging of extended objects using triangular aperture
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DOI：10.1364/OE.414341.png)
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We propose a method of single-frame coherent diffraction imaging using a triangular aperture, which can not only reconstruct the projection image of extended objects from a single-frame coherent diffraction pattern, but also improve the image of the wavefield of the probe. In this method, a plane-wave illuminates a triangular aperture. An object is placed immediately after the aperture or in the image plane of the aperture through a lens. A far-field coherent diffraction pattern is collected by a two-dimensional detector. The object image is reconstructed from the single-frame diffraction pattern using a phase retrieval algorithm without support constraints. We simulate feasible experimental setups in the hard X-ray regime and show that this method can be practical use for single-frame coherent diffraction imaging. The present method has the potential exploring dynamic phenomena in materials science and biology with high spatiotemporal resolution using synchrotron radiation/free-electron lasers. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Keyword:
PHASE-RETRIEVAL
RAY
RECONSTRUCTION
MODULUS
期刊
IF:
3.3
论文数:
6.1W
被引数:
14.3W
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