![[article image]](https://cacm.acm.org/system/assets/0004/0013/052421_3alexd-iStock_lidar.large.jpg?1621882612&1621882612 "Illustration of LiDAR sensing around an auto (in blue).")
A Light Detection and Ranging (LiDAR) system developed by researchers at the University of Texas at Austin and the University of Virginia can enhance weak signals reflected off faraway objects.
A new avalanche photodiode the researchers developed can amplify the photoelectric effect for light detection via a staircase-like alignment.
The researchers said its greater light sensitivity enabled it to generate a more comprehensive perspective for a car's onboard computers, while also removing noise.
The engineers intend to integrate the new device with an avalanche photodiode they invented last year to capture near-infrared light, for greater accuracy in fiber-optic communications and thermal imaging.
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