T. Steffensen

Measuring Arterial Stiffness with Skin-Interfaced All-Optical Metasurfaces

Continuous cardiovascular monitoring is essential for managing circulatory health and disease, yet most wearable sensors are constrained by reliance on electrical transduction and built-in electronics. We present a circuit-free, all-optical approach using diffraction from a skin-interfaced nanophotonic surface to detec...