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SPIE--International Society for Optics and Photonics


Sunlight-powered generation of correlated photon pairs

Researchers have successfully generated correlated photon pairs using sunlight as the sole pump source for spontaneous parametric down-conversion. The system, which eliminates the need for lasers and external power, achieves comparable ghost-imaging visibility to conventional laser-based systems. This breakthrough enables a fully passi...

Comparing AI anatomy segmentation models when ground truth is missing

A recent study introduces a practical framework for comparing AI-based anatomy segmentation models in the absence of expert reference annotations. The work focuses on chest CT scans from the National Lung Screening Trial dataset and evaluates how consistently different open-source models label anatomical structures. Key findings includ...

SourceSPIE--International Society for Optics and Photonics·JournalJournal of Medical Imaging·DateMay 13, 2026

A redesigned endoscope offers a new way to look for early signs of ovarian cancer

A redesigned endoscope, called CAFE, offers a new way to detect early signs of ovarian cancer by combining high-resolution imaging with gentle cell collection. The device successfully imaged fallopian tube tissue and collected large numbers of epithelial cells, suggesting its potential for earlier disease detection.

SourceSPIE--International Society for Optics and Photonics·JournalBiophotonics Discovery·DateApr 2, 2026

Advancing breastfeeding research through optical analysis of human milk

Researchers from the University of Twente are studying the optical properties of human milk to understand the causes of lactation insufficiency. The combined findings from two studies aid the development of light scattering based methods for human milk analysis, providing a powerful tool for research into lactation insufficiency.

SourceSPIE--International Society for Optics and Photonics·JournalBiophotonics Discovery·DateMar 12, 2026

A new window into hemodialysis: How optical sensors could make treatment safer

A new hybrid optical system noninvasively tracks tissue water dynamics during hemodialysis, identifying early signs of patient instability. The system uses near-infrared spectroscopy to gather data on tissue water content and other physiological signals, providing a high-resolution portrait of the optical properties of tissue.

SourceSPIE--International Society for Optics and Photonics·JournalBiophotonics Discovery·DateFeb 6, 2026

AI-driven ultrafast spectrometer-on-a-chip: A revolution in real-time sensing

A newly developed silicon spectrometer-on-a-chip achieves accurate, noise-resilient hyperspectral sensing by using a reconstructive method and artificial intelligence. The device is sensitive across a broad spectral range, including the crucial near-infrared spectrum, and can capture fleeting light–matter interactions.

Seeing thyroid cancer in a new light: when AI meets label-free imaging in the operating room

Researchers combined Dynamic Optical Contrast Imaging (DOCI) with machine learning to identify thyroid cancer during surgery. The AI analysis framework accurately classified samples across three categories and generated tumor probability maps for precise location identification.

SourceSPIE--International Society for Optics and Photonics·JournalBiophotonics Discovery·TypeObservational study·DateJan 6, 2026