Further improvements to the ptychographical iterative engine

A Maiden, D Johnson, P Li - Optica, 2017 - opg.optica.org
Ptychography is a form of phase imaging that uses iterative algorithms to reconstruct an
image of a specimen from a series of diffraction patterns. It is swiftly develo** into a …

Ptychography

J Rodenburg, A Maiden - Springer Handbook of Microscopy, 2019 - Springer
Ptychography is a computational imaging technique. A detector records an extensive data
set consisting of many inference patterns obtained as an object is displaced to various …

Adaptive step-size strategy for noise-robust Fourier ptychographic microscopy

C Zuo, J Sun, Q Chen - Optics express, 2016 - opg.optica.org
The incremental gradient approaches, such as PIE and ePIE, are widely used in the field of
ptychographic imaging due to their great flexibility and computational efficiency …

The numerics of phase retrieval

A Fannjiang, T Strohmer - Acta Numerica, 2020 - cambridge.org
Phase retrieval, ie the problem of recovering a function from the squared magnitude of its
Fourier transform, arises in many applications, such as X-ray crystallography, diffraction …

Iterative least-squares solver for generalized maximum-likelihood ptychography

M Odstrčil, A Menzel, M Guizar-Sicairos - Optics express, 2018 - opg.optica.org
Although ptychography does not require a precise knowledge of the illumination wavefront,
common implementations rely upon assumptions such as accurate knowledge of the scan …

PtyLab. m/py/jl: a cross-platform, open-source inverse modeling toolbox for conventional and Fourier ptychography

L Loetgering, M Du, D Boonzajer Flaes, T Aidukas… - Optics …, 2023 - opg.optica.org
Conventional (CP) and Fourier (FP) ptychography have emerged as versatile quantitative
phase imaging techniques. While the main application cases for each technique are …

Solving ptychography with a convex relaxation

R Horstmeyer, RY Chen, X Ou, B Ames… - New journal of …, 2015 - iopscience.iop.org
Ptychography is a powerful computational imaging technique that transforms a collection of
low-resolution images into a high-resolution sample reconstruction. Unfortunately …

SHARP: a distributed GPU-based ptychographic solver

S Marchesini, H Krishnan, BJ Daurer… - Applied …, 2016 - journals.iucr.org
Ever brighter light sources, fast parallel detectors and advances in phase retrieval methods
have made ptychography a practical and popular imaging technique. Compared to previous …

High-resolution three-dimensional structural microscopy by single-angle Bragg ptychography

SO Hruszkewycz, M Allain, MV Holt, CE Murray… - Nature materials, 2017 - nature.com
Coherent X-ray microscopy by phase retrieval of Bragg diffraction intensities enables lattice
distortions within a crystal to be imaged at nanometre-scale spatial resolutions in three …

Fly-scan ptychography

X Huang, K Lauer, JN Clark, W Xu, E Nazaretski… - Scientific reports, 2015 - nature.com
We report an experimental ptychography measurement performed in fly-scan mode. With a
visible-light laser source, we demonstrate a 5-fold reduction of data acquisition time. By …