Recent progress on aberration compensation and coherent noise suppression in digital holography

Y Liu, Z Wang, J Huang - Applied Sciences, 2018 - mdpi.com
Digital holographic microscopy (DHM) is a topographic measurement technique that permits
full-field, nondestructive, dynamic, quantitative amplitude, and phase-contrast imaging. The …

Cycle-consistent deep learning approach to coherent noise reduction in optical diffraction tomography

G Choi, DH Ryu, YJ Jo, YS Kim, W Park, H Min… - Optics express, 2019 - opg.optica.org
We present a deep neural network to reduce coherent noise in three-dimensional
quantitative phase imaging. Inspired by the cycle generative adversarial network, the …

Real-time halo correction in phase contrast imaging

ME Kandel, M Fanous, C Best-Popescu… - Biomedical optics …, 2018 - opg.optica.org
As a label-free, nondestructive method, phase contrast is by far the most popular microscopy
technique for routine inspection of cell cultures. However, features of interest such as …

White light phase shifting interferometric microscopy with whole slide imaging for quantitative analysis of biological samples

P Mann, V Singh, S Tayal, P Thapa… - Journal of …, 2022 - Wiley Online Library
In this paper, we demonstrate the white light phase shifting interferometer employed as
whole slide scanner and phase profiler for determining qualitative and quantitative …

Calibration-free quantitative phase imaging using data-driven aberration modeling

T Chang, DH Ryu, YJ Jo, G Choi, HS Min, YK Park - Optics Express, 2020 - opg.optica.org
We present a data-driven approach to compensate for optical aberrations in calibration-free
quantitative phase imaging (QPI). Unlike existing methods that require additional …

High-brightness laser imaging with tunable speckle reduction enabled by electroactive micro-optic diffusers

H Farrokhi, TM Rohith, J Boonruangkan, S Han… - Scientific reports, 2017 - nature.com
High coherence of lasers is desirable in high-speed, high-resolution, and wide-field
imaging. However, it also causes unavoidable background speckle noise thus degrades the …

Speckle noise suppression based on empirical mode decomposition and improved anisotropic diffusion equation

X Zhan, C Gan, Y Ding, Y Hu, B Xu, D Deng, S Liao… - Photonics, 2022 - mdpi.com
Existing methods to eliminate the laser speckle noise in quantitative phase imaging always
suffer from the loss of detailed phase information and the resolution reduction in the …

Label‐free high‐resolution white light quantitative phase nanoscopy system

S Tayal, S Tiwari, DS Mehta - Journal of Biophotonics, 2023 - Wiley Online Library
We present a high‐resolution white light quantitative phase nanoscopy (WLQPN) system
that can be utilized to visualize nanoparticles and subcellular features of the biological …

Speckle-free quantitative phase and amplitude imaging using common-path lateral shearing interference microscope with pseudo-thermal light source illumination

S Tayal, K Usmani, V Singh, V Dubey, DS Mehta - Optik, 2019 - Elsevier
In quantitative phase imaging, generally, a highly coherent light source such as a laser is
used to achieve the interference easily. But due to laser's high spatio-temporal coherence …

Low‐coherent optical diffraction tomography by angle‐scanning illumination

KR Lee, S Shin, Z Yaqoob, PTC So… - Journal of …, 2019 - Wiley Online Library
Temporally low‐coherent optical diffraction tomography (ODT) is proposed and
demonstrated based on angle‐scanning Mach‐Zehnder interferometry. Using a digital …