Motion Detector 1,000 Times More Sensitive
October 1, 2004 | Source: KurzweilAI
Sandia National Laboratories researchers have developed a motion detector that allows for viewing a motion of 10 nm with the naked eye.
The device depends upon a formerly unrecognized property of optics: light diffracted from very small gratings that move very small lateral distances undergoes a relatively big, and thus easily measurable, change in reflection.