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Nonlinear ptychographic coherent diffractive imaging
Optics Express, 2016 Ptychographic Coherent diffractive imaging (PCDI) is a significant advance in imaging allowing the measurement of the full electric field at a sample without use of any imaging optics. So far it has been confined solely to imaging of linear optical responses.
Odstrcil, Michal +5 more
openaire +6 more sources
Broadband coherent diffractive imaging
Nature Photonics, 2020 Recent technological advances in attosecond science hold the promise of tracking electronic processes at the shortest space and time scales. However, the necessary imaging methods combining attosecond temporal resolution with nanometre spatial resolution are currently lacking.
Julius Huijts +8 more
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Coherent imaging at the diffraction limit [PDF]
Journal of Synchrotron Radiation, 2014 X-ray ptychography, a scanning coherent diffractive imaging technique, holds promise for imaging with dose-limited resolution and sensitivity. If the foreseen increase of coherent flux by orders of magnitude can be matched by additional technological and analytical advances, ptychography may approach imaging speeds familiar from full-field methods ...
P. Thibault +2 more
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Performance evaluation of Bragg coherent diffraction imaging
New Journal of Physics, 2017 In this study, we present a numerical framework for modeling three-dimensional (3D) diffraction data in Bragg coherent diffraction imaging (Bragg CDI) experiments and evaluating the quality of obtained 3D complex-valued real-space images recovered by ...
H Öztürk +5 more
doaj +1 more source
Three-dimensional coherent X-ray diffraction imaging via deep convolutional neural networks
npj Computational Materials, 2021 As a critical component of coherent X-ray diffraction imaging (CDI), phase retrieval has been extensively applied in X-ray structural science to recover the 3D morphological information inside measured particles.
Longlong Wu +7 more
doaj +1 more source
Special Issue on Trends in Sub-Microsecond X-ray Science with Coherent Beams
Applied Sciences, 2022 Large increases in synchrotron brightness have brought notable breakthroughs in measurement techniques that exploit transverse coherence, such as X-ray photon correlation spectroscopy (XPCS), coherent diffraction imaging (CDI), diffraction microscopy ...
Sooheyong Lee +2 more
doaj +1 more source
Deep Learning Coherent Diffractive Imaging [PDF]
, 2022 We report the development of deep learning coherent electron diffractive imaging at sub-angstrom resolution using convolutional neural networks (CNNs) trained with only simulated data. We experimentally demonstrate this method by applying the trained CNNs to directly recover the phase images from electron diffraction patterns of twisted hexagonal boron
Chang, Dillan J +7 more
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Resolving power of diffraction imaging with an objective: a numerical study [PDF]
, 2017 Diffraction imaging in the far-field can detect 3D morphological features of an object for its coherent nature. We describe methods for accurate calculation and analysis of diffraction images of scatterers of single and double spheres by an imaging unit ...
Bessis +23 more
core +1 more source
Recovering Missing Data in Coherent Diffraction Imaging [PDF]
OSA Imaging and Applied Optics Congress 2021 (3D, COSI, DH, ISA, pcAOP), 2021 A method is presented for inferring missing low-frequency data in coherent diffraction imaging via the least-squares solution of a linear system. This gives rise to improved image reconstruction when solving the phase retrieval problem.
David A. Barmherzig +5 more
openaire +2 more sources
X-ray ptychography on low-dimensional hard-condensed matter materials [PDF]
, 2019 Tailoring structural, chemical, and electronic (dis-)order in heterogeneous media is one of the transformative opportunities to enable new functionalities and sciences in energy and quantum materials.
Burdet, N +6 more
core +3 more sources