Remote photonic nano-vibrations sensing and nanoparticles based nanoscopy

We have developed a technological platform that can be used for remote sensing of nano-vibrations which can be used for biomedical parameters estimation as well as for establishing a directional communication channel. The technology is based upon illuminating a surface with a laser and then using an imaging camera to perform temporal and spatial tracking of secondary speckle patterns in order to have nano metric accurate estimation of the movement of the back reflecting surface. If the back reflecting surface is a skin located close to main blood arteries then biomedical monitoring can be realized. If the surface is close to our neck or head then a directional communication channel can be established for remote, directional and noise isolated sensing of speech signals. The proposed technology was already applied for remote and continuous estimation of heart beats, respiration, blood pulse pressure, intra-ocular pressure (IOP), estimation of alcohol and glucose concentrations in blood stream, blood coagulation and oximetry.