Will be useful for the military: new laser technology will allow to "see" at a distance of 10 km

New technology can improve safety, monitoring and remote sensing. Scientists at the University of Geriot Wott in the UK have developed a new Lidar system that can "see" through fog and smoke, identifying hidden objects and giving advanced remote sensing opportunities. About it writes Interesting Engineering. The new system can clearly reflect the human face at 3D at a distance of 800 meters.

Lidar (Light Detection and Ranging) works, measuring the time required by a laser pulse to pass to the object and back. This measurement of span time shows distance, and a 3D image is created by scanning the area. The new technology uses a superconducting nano -pivotic one photonic detector (SNSPD) - a hypersensitive detector developed by the Massachuseta Institute of Technological Institute and the laboratory of NASA reactive movement.

The detector can record individual photons, which allows you to use low -power, safe laser eyes for rapid measurements at long distances. The system uses a one -photon detector whose efficiency is approximately twice as high as detectors used in similar LIDAR systems, which are reported by other research groups, and the temporal resolution of the system is at least 10 times better. The Lidar system has passed the field tests at the University of Geriot-Wott.

The measurements were made from objects located at a distance of 45 meters, 325 meters and 1 km. Researchers have checked the resolution of the system by scanning a three -dimensional goal and taking pictures of the human face at these distances. The system recognized parts up to 1 mm in size - a tenfold improvement in the depth of resolution compared to previous attempts. Using a 3. 5 MW laser laser, they received a three -dimensional image of the human face at these distances only 1 ms per pixel.