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Single-photon sensitivity captures triple-scattered light, and 55 ps timing resolution enables accurate locating of hidden objects. 

Researchers at the University of Glasgow and Heriot-Watt University (Edinburgh, Scotland) used the PF32 to capture photons that had interacted with an object hidden from direct line-of-sight. The top figure shows the experimental setup, whilst the video shows tracking of the object at 3 second intervals. The full paper is available here.

To see further work from Prof. Faccio’s group, please visit their website.

The video below shows how the system can track the hidden object and update the reconstruction every 3 seconds.

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