Structural alignment in fibrous tissues like myocardium and tendons is a key biomarker of physiological integrity and ...

An essential role of the cornea is to contribute to light focusing on the retina. Its curved shape, and therefore its ability to focus light, must be perfectly stable to ensure a sharp image despite ...

Researchers have developed a compact, single-shot polarization imaging system that can provide a complete picture of polarization. By using just two thin metasurfaces, the imaging system could unlock ...

Photoplethysmography (PPG) is an optical sensing technique that measures blood volume changes and underpins devices ranging from hospital-grade pulse oximeters to consumer wearables that track heart ...