Neches Professor of Electrical Engineering, Medical Engineering and Physics, Caltech. Works on integrating optical, magnetic and fluidic nanodevices into microsystems. Co-founder of several high-technology companies. Built a state-of-the-art cleanroom at Caltech. Has pioneered surface emitting lasers, photonic crystals, silicon nanophotonics and surface plasmon devices. Focuses on building wireless implantable health monitors and point-of-care medical diagnostic tools to provide convenient and inexpensive feedback for patients. Has co-authored more than 300 publications and holds over 100 patents.