121 citations · 314 across the 8 of their papers we have counts for
10 papers
Distribution-informed and wavelength-flexible data-driven photoacoustic oximetry
Janek Gröhl, Kylie Yeung, Kevin Gu +5
Significance: Photoacoustic imaging (PAI) promises to measure spatially-resolved blood oxygen saturation, but suffers from a lack of accurate and robust spectral unmixing methods t…
Targeted Multispectral Filter Array Design for Endoscopic Cancer Detection in the Gastrointestinal Tract
Michaela Taylor-Williams, Ran Tao, Travis W Sawyer +3
Colour differences between healthy and diseased tissue in the gastrointestinal tract are detected visually by clinicians during white light endoscopy (WLE); however, the earliest s…
Moving beyond simulation: data-driven quantitative photoacoustic imaging using tissue-mimicking phantoms
Janek Gröhl, Thomas R. Else, Lina Hacker +3
Accurate measurement of optical absorption coefficients from photoacoustic imaging (PAI) data would enable direct mapping of molecular concentrations, providing vital clinical insi…
Mechanical-scan-free and multi-color super-resolution imaging with diffractive spot array illumination
Ning Xu, Sarah E. Bohndiek, Zexing Li +2
Point-scanning microscopy approaches are transforming super-resolution imaging. Despite achieving parallel high-speed imaging using multifocal techniques, efficient multi-color cap…
Optimizing achromaticity in metalenses, and development of a layered thin-film metalens
Calvin M. Hooper, Sarah E. Bohndiek, Calum Williams
Metalenses are ultrathin optical devices designed to replicate behavior of conventional refractive lenses, or lens arrays, utilizing nanoscale resonant structures to redirect incid…
Development of a blood oxygenation phantom for photoacoustic tomography combined with online pO2 detection and flow spectrometry
Marcel Gehrung, Sarah Bohndiek, Joanna Brunker
Photoacoustic tomography (PAT) is intrinsically sensitive to blood oxygen saturation (sO2) in vivo. However, making accurate sO2 measurements without knowledge of tissue- and instr…
Characterising optical fibre transmission matrices using metasurface reflector stacks for lensless imaging without distal access
George S. D. Gordon, Milana Gataric, Alberto Gil C. P. Ramos +5
The ability to form images through hair-thin optical fibres promises to open up new applications from biomedical imaging to industrial inspection. Unfortunately, deployment has bee…
Grayscale-to-color: Single-step fabrication of bespoke multispectral filter arrays
Calum Williams, George S. D. Gordon, Sophia Gruber +2
Conventional cameras, such as in smartphones, capture wideband red, green and blue (RGB) spectral components, replicating human vision. Multispectral imaging (MSI) captures spatial…
Quantitative phase and polarisation endoscopy applied to detection of early oesophageal tumourigenesis
George S. D. Gordon, James Joseph, Maria P. Alcolea +9
Phase and polarisation of coherent light are highly perturbed by interaction with microstructural changes in pre-malignant tissue, holding promise for label-free early cancer detec…
Reconstruction of optical vector-fields with applications in endoscopic imaging
Milana Gataric, George S. D. Gordon, Francesco Renna +3
We introduce a framework for the reconstruction of the amplitude, phase and polarisation of an optical vector-field using calibration measurements acquired by an imaging device wit…