Smallest ultrasound detector

Engineers at the German Research Center for Environmental Health and the Technical University of Munich have developed an ultrasound detector for imaging that is smaller than a blood cell and functions in miniaturized photonic circuits instead of piezoelectric crystals.  Known as a silicon waveguide-etalon detector, or SWED, it has the ability to image smaller than one micrometer—with super high resolution.  MORE

Image Credit: Helmholtz Zentrum München