Physics
Single-Photon Avalanche Diode Arrays for Time-of-Flight LiDAR
Quick fact
A SPAD can detect a single photon with a timing jitter of only a few tens of picoseconds, enabling distance measurements with centimeter-level accuracy over distances of hundreds of meters.
Why this is interesting
Imagine being able to 'see' a single photon of light as it bounces off an object and returns to you. What if such a tiny signal was the key to self-driving cars and robot vision?