MIT researchers have developed a new, ultrasensitive magnetic-field detector that is 1,000 times more energy-efficient than its predecessors. It could lead to miniaturized, battery-powered devices for medical and materials imaging, contraband detection, and even geological exploration.
Magnetic-field detectors, or magnetometers, are already used for all those applications.
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Ref: Broadband magnetometry and temperature sensing with a light-trapping diamond waveguide. Nature Physics (2015) | DOI:10.1038/nphys3291
Researchers create ultrasensitive magnetic-field detector 1,000x more energy efficient than before
