[HTML][HTML] Transport of intensity equation: a tutorial

C Zuo, J Li, J Sun, Y Fan, J Zhang, L Lu… - Optics and Lasers in …, 2020 - Elsevier
When it comes to “phase measurement” or “quantitative phase imaging”, many people will
automatically connect them with “laser” and “interferometry”. Indeed, conventional …

Smart computational light microscopes (SCLMs) of smart computational imaging laboratory (SCILab)

Y Fan, J Li, L Lu, J Sun, Y Hu, J Zhang, Z Li, Q Shen… - PhotoniX, 2021 - Springer
Computational microscopy, as a subfield of computational imaging, combines optical
manipulation and image algorithmic reconstruction to recover multi-dimensional microscopic …

X-ray Fokker–Planck equation for paraxial imaging

DM Paganin, KS Morgan - Scientific reports, 2019 - nature.com
Abstract The Fokker–Planck equation can be used in a partially-coherent imaging context to
model the evolution of the intensity of a paraxial x-ray wave field with propagation. This …

Toward perfect optical diffusers: dielectric huygens' metasurfaces with critical positional disorder

D Arslan, A Rahimzadegan, S Fasold… - Advanced …, 2022 - Wiley Online Library
Conventional optical diffusers, such as thick volume scatterers (Rayleigh scattering) or
microstructured surface scatterers (geometric scattering), lack the potential for on‐chip …

Comparative study of phase unwrap** algorithms based on solving the Poisson equation

Z Zhao, H Zhang, C Ma, C Fan… - … Science and Technology, 2020 - iopscience.iop.org
Phase unwrap** is a crucial process to obtain the absolute phase profile in many optical
phase measurement techniques such as interferometry, holography, profilometry, etc. In this …

Single-shot x-ray speckle-based imaging of a single-material object

KM Pavlov, H Li, DM Paganin, S Berujon… - Physical Review …, 2020 - APS
We develop a means for speckle-based phase imaging of the projected thickness of a single-
material object, under the assumption of illumination by spatially random time-independent x …

Directional dark-field implicit x-ray speckle tracking using an anisotropic-diffusion Fokker-Planck equation

KM Pavlov, DM Paganin, KS Morgan, H Li, S Berujon… - Physical Review A, 2021 - APS
When a macroscopic-sized noncrystalline sample is illuminated using coherent x-ray
radiation, a bifurcation of photon energy flow may occur. The coarse-grained complex …

Implicit tracking approach for X-ray phase-contrast imaging with a random mask and a conventional system

L Quénot, H Rougé-Labriet, S Bohic, S Berujon, E Brun - Optica, 2021 - opg.optica.org
X-ray phase contrast imaging (PCI) has shown great potential for clinical investigation of soft
tissues. However, most of the existing X-ray PCI modalities require either a partially coherent …

Ptychographic modulation engine: a low-cost DIY microscope add-on for coherent super-resolution imaging

Z Bian, S Jiang, P Song, H Zhang… - Journal of Physics D …, 2019 - iopscience.iop.org
Imaging of biological cells and tissues often relies on fluorescent labels, which offer high
contrast with molecular specificity. The use of exogenous labeling agents, however, may …

Ptychography imaging by 1-D scanning with a diffuser

X Wen, Y Geng, X Zhou, J Tan, S Liu, C Tan, Z Liu - Optics Express, 2020 - opg.optica.org
It is beneficial to improve the resolution by a diffuser in imaging systems, because higher
frequency information could be involved into the captured patterns via scattering effect. In …