Super-fast camera records light-based 'sonic booms'

The technology could help you see activity in the brain.

Scientists have suspected that light can create its own conical wakes, like a sonic boom, but how do you capture something that happens so quickly? With a very fast camera, naturally. Washington University in St. Louis has recorded these photonic shockwaves using a "streak camera" that measures both the image and temporal data at 100 billion frames per second.

https://www.engadget.com/2017/01/23/...d-sonic-booms/