8 papers
High throughput spatially sensitive single-shot quantitative phase microscopy
Azeem Ahmad, Vishesh Dubey, Nikhil Jayakumar +7
High space-bandwidth product with high spatial phase sensitivity is indispensable for a single-shot quantitative phase microscopy (QPM) system. It opens avenue for widespread appli…
High space-bandwidth in quantitative phase imaging using partially spatially coherent optical coherence microscopy and deep neural network
Ankit Butola, Sheetal Raosaheb Kanade, Sunil Bhatt +7
Quantitative phase microscopy (QPM) is a label-free technique that enables to monitor morphological changes at subcellular level. The performance of the QPM system in terms of spat…
Influence of laser spot size at diffuser plane on the longitudinal spatial coherence function of optical coherence microscopy system
Kashif Usmani, Azeem Ahmad, Rakesh Joshi +3
Coherence properties and wavelength of light sources are indispensable for optical coherence microscopy/tomography as they greatly influence the signal to noise ratio, axial resolu…
Highly stable common-path quantitative phase microscope for biomedical imaging
Azeem Ahmad, Vishesh Dubey, Ankit Butola +2
High temporal stability is the primary requirement of any quantitative phase microscope (QPM) systems for the early stage detection of various human related diseases. The high temp…
Sub-nanometer height sensitivity by phase shifting interference microscopy under ambient environmental fluctuations
Azeem Ahmad, Vishesh Dubey, Ankit Butola +3
Phase shifting interferometric (PSI) techniques are among the most sensitive phase measurement methods. Owing to its high sensitivity, any minute phase change caused due to environ…
Deep learning architecture LightOCT for diagnostic decision support using optical coherence tomography images of biological samples
Ankit Butola, Dilip K. Prasad, Azeem Ahmad +6
Optical coherence tomography (OCT) is being increasingly adopted as a label-free and non-invasive technique for biomedical applications such as cancer and ocular disease diagnosis.…