Adaptive 3D convolutional neural network-based reconstruction method for 3D coherent diffraction imaging

A Scheinker, R Pokharel - Journal of Applied Physics, 2020 - pubs.aip.org
We present a novel adaptive machine-learning based approach for reconstructing three-
dimensional (3D) crystals from coherent diffraction imaging. We represent the crystals using …

Three-dimensional coherent x-ray diffraction imaging via deep convolutional neural networks

L Wu, S Yoo, AF Suzana, TA Assefa, J Diao… - npj Computational …, 2021 - nature.com
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 …

Atomic resolution coherent x-ray imaging with physics-based phase retrieval

J Meziere, AH Carpenter, A Pateras, R Harder… - npj Computational …, 2024 - nature.com
Coherent x-ray imaging and scattering from accelerator based sources such as synchrotrons
continue to impact biology, medicine, technology, and materials science. Many synchrotrons …

Bragg coherent diffractive imaging for defects analysis: Principles, applications, and challenges

Y Sun, A Singer - Chemical Physics Reviews, 2024 - pubs.aip.org
The ability to visualize crystalline defects and lattice distortions at the nanoscale holds
profound implications for enhancing material properties and optimizing their design. Bragg …

Bragg coherent diffraction imaging by simultaneous reconstruction of multiple diffraction peaks

Y Gao, X Huang, H Yan, GJ Williams - Physical Review B, 2021 - APS
Bragg coherent diffractive imaging (BCDI) is a noninvasive microscopy technique that can
visualize the morphology and internal lattice deviations of crystals with nanoscale spatial …

4th generation synchrotron source boosts crystalline imaging at the nanoscale

P Li, M Allain, TA Grünewald, M Rommel… - Light: Science & …, 2022 - nature.com
New 4th-generation synchrotron sources, with their increased brilliance, promise to greatly
improve the performances of coherent X-ray microscopy. This perspective is of major interest …

3D Bragg coherent diffraction imaging of extended nanowires: defect formation in highly strained InGaAs quantum wells

MO Hill, P Schmiedeke, C Huang, S Maddali, X Hu… - ACS …, 2022 - ACS Publications
InGaAs quantum wells embedded in GaAs nanowires can serve as compact near-infrared
emitters for direct integration onto Si complementary metal oxide semiconductor technology …

Revealing nano-scale lattice distortions in implanted material with 3D Bragg ptychography

P Li, NW Phillips, S Leake, M Allain, F Hofmann… - Nature …, 2021 - nature.com
Small ion-irradiation-induced defects can dramatically alter material properties and speed
up degradation. Unfortunately, most of the defects irradiation creates are below the visibility …

Concurrent multi-peak Bragg coherent x-ray diffraction imaging of 3D nanocrystal lattice displacement via global optimization

S Maddali, TD Frazer, N Delegan, KJ Harmon… - npj Computational …, 2023 - nature.com
In this paper we demonstrated a method to reconstruct vector-valued lattice distortion fields
within nanoscale crystals by optimization of a forward model of multi-reflection Bragg …

Deep learning initialized phase retrieval

R Manekar, Z Zhuang, K Tayal, V Kumar… - NeurIPS 2020 Workshop …, 2020 - openreview.net
Phase retrieval (PR) consists of estimating 2D or 3D objects from their Fourier magnitudes
and takes a central place in scientific imaging. At present, most iterative methods for PR …