Interferometer Device Sees Text from a Mile Away
May 9, 2025• Physics 18, 99A high-resolution imaging system captures distant objects by shining laser light on them and detecting the reflected light.
L.-C. Liu et al. [1]
Seeing the small picture. The remote-imaging system (left) shoots eight infrared laser beams (red line added to show the path) at a target (right) in a building 1.36 km away. Light reflecting off the target is collected by the system’s two telescopes.
One of astronomers’ tricks for observing distant objects is intensity inte...
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