Diamond dust enables low-cost, high-efficiency magnetic field detection

Researchers including EE Prof. Sayeef Salahuddin and postdoc Dominic Labanowski (Ph.D. ’17) have created a device that dramatically reduces the energy needed to power magnetic field detectors, which could revolutionize how we measure the magnetic fields that flow through our electronics, our bodies, and our planet.   The researchers found a new way to excite the tiny nitrogen-infused diamond nonocrystals in their magnetic sensor with microwaves, using 1,000 times less power than is required by traditional sensors.  “Our sensors could replace those more-difficult-to-use sensors in a lot of applications from navigation to medical imaging to natural resource exploration,” said Labanowski.