.png){kind=icon}
.png){kind=icon}
Return
Single-frame coherent diffraction imaging of extended objects using triangular aperture
.png){kind=icon}
OA
AI
DOI：10.1364/OE.414341.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
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
Keywords:
PHASE-RETRIEVAL
RAY
RECONSTRUCTION
MODULUS