Highly sensitive quantitative phase microscopy and deep learning aided with whole genome sequencing for rapid detection of infection and antimicrobial resistance

A Ahmad, R Hettiarachchi, A Khezri… - Frontiers in …, 2023 - frontiersin.org
Current state-of-the-art infection and antimicrobial resistance (AMR) diagnostics are based
on culture-based methods with a detection time of 48–96 h. Therefore, it is essential to …

Towards ultrafast quantitative phase imaging via differentiable microscopy

U Haputhanthri, K Herath, R Hettiarachchi… - Biomedical Optics …, 2024 - opg.optica.org
With applications ranging from metabolomics to histopathology, quantitative phase
microscopy (QPM) is a powerful label-free imaging modality. Despite significant advances in …

Hilbert phase microscopy based on pseudo thermal illumination in the Linnik configuration

M Rogalski, M Cywińska, A Ahmad, K Patorski… - Optics Letters, 2022 - opg.optica.org
Quantitative phase microscopy (QPM) is often based on recording an object-reference
interference pattern and its further phase demodulation. We propose pseudo Hilbert phase …

3D full-wave multi-scattering forward solver for coherent microscopes

Y Qin, A Butola, K Agarwal - Optics Express, 2023 - opg.optica.org
A rigorous forward model solver for conventional coherent microscope is presented. The
forward model is derived from Maxwell's equations and models the wave behaviour of light …

Single-shot quantitative differential phase contrast microscope using a single calcite beam displacer

A Saxena, A Ahmad, VK Dubey, H Mao, A Kumar… - Applied Optics, 2024 - opg.optica.org
This paper presents the development of a single-shot, partially spatially coherent
quantitative differential phase contrast microscopy (Q-DPCM) system. The optical scheme …

Asymmetric reflection quantitative phase microscopy with a scalable field of view using dynamic speckle illumination

C Wei, Z Li, J Xu, N Wang, Z Zhou, J Ma, J Huang… - Optics Letters, 2025 - opg.optica.org
Dynamic speckle illumination-based quantitative phase microscopy (QPM) offers the
capability to eliminate coherent noise and achieve depth selection; however, the low …

Highly sensitive quantitative phase microscopy and deep learning complement whole genome sequencing for rapid detection of infection and antimicrobial resistance

A Ahmad, R Hettiarachchi, A Khezri, BS Ahluwalia… - bioRxiv, 2022 - biorxiv.org
The current state-of-the-art infection and antimicrobial resistance diagnostics (AMR) is
based mainly on culture-based methods with a detection time of 48-96 hours. Slow …

Hybrid laser cavity design for improved photon lifetime and performance

Y Mehta, KC Chien, L Lei, K Gundogdu… - IEEE Photonics …, 2024 - ieeexplore.ieee.org
We report an optical cavity design that combines a distributed feedback (DFB) cavity as the
primary feedback element for lasing with a silver mirror acting as a Fabry-Pérot cavity for …

High space–time bandwidth product imaging in low coherence quantitative phase microscopy

A Ahmad, P Gocłowski, V Dubey, M Trusiak… - Scientific Reports, 2024 - nature.com
Current low coherence quantitative phase microscopy (LC-QPM) systems suffer from either
reduced field of view (FoV) or reduced temporal resolution due to the short temporal …

PUBLISHING GROUP

D Mehta, A Saxena, A Ahmad, VK Dubey, H MAO - 2024 - opg.optica.org
This paper presents the development of a single-shot, partially spatially coherent
quantitative differential phase contrast microscopy (Q-DPCM) system. The optical scheme …