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Using a single-photon avalanche diode that can detect the arrival times of photons down to a single photon, with precision in the tens of trillions of seconds, researchers at Stanford University have developed a lidar system capable of seeing through opaque objects. The technology has potential for self-driving vehicles and satellite imaging.
In terms of timing resolution, the method surpasses most detectors in sensitivity and accuracy, said David Lindell, a graduate student in electrical engineering and lead author of the paper introducing the development.
“Like other lidar systems, it uses a laser to illuminate a point with a short pulse of light and then an ultrafast detector measures the time it takes for photons to…READ MORE