Solid State Technology and Devices Seminar: Light based Sound Extraction:Remote Photonic Bio-Sensing and Disease Diagnosis
Seminar | February 8 | 1-2 p.m. | Cory Hall, The Hogan Room, 521
Zeev Zalevsky, Professor, Engineering and the Nanotechnology Center, Bar-Ilan University, Israel
I will present a photonic technological sensing platform that can be used for remote and simultaneous sensing of many biomedical parameters as well as for serving as highly directional hearing aid device. The technology is based upon illuminating a light scattering surface (skin) with a laser and then using a camera with its special optics to perform temporal and spatial tracking of the back scattered 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 multi-functional bio-medical monitoring can be realized. If the surface is close to our neck or head, then a directional communication channel can be established and used as an improved in its directionality hearing aid device.
The proposed technology was already applied for remote and continuous estimation of heart beats (rate and sound), respiration (rate and sound), blood pressure, intra ocular pressure, blood hematology (e.g. estimation of alcohol and glucose concentrations in blood stream as well as blood coagulation and oximetry), blood flow hemodynamics and more.
I will also show how the above-mentioned bio-medical sensor can thereafter be used for remote and home-care used diseases monitoring/diagnosis including diseases such as melanoma, breast cancer, glaucoma and more.