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Originally Posted by wireframe
Sorry to be spoilsport, but this is just a bunch of ordinary cameras with a delay between the triggers. This is very old technology - similar to the way some of the effects in The Matrix were produced - that has been adapted to something that is cool to look at. While the videos this camera array can make are totally cool, the tech is a bit boring.
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Sorry but you're completely wrong, we're talking about light here which travels just under 3 meters per hundred-millionth of a second in air. No array of cameras could capture that.
http://web.media.mit.edu/~raskar/trillionfps/
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How can one take a photo of photons in motion at a trillion frames per second?
We use a pico-second accurate detector. We use a special imager called a streak tube that behaves like an oscilloscope with corresponding trigger and deflection of beams. A light pulse enters the instrument through a narrow slit along one direction. It is then deflected in the perpendicular direction so that photons that arrive first hit the detector at a different position compared to photons that arrive later. The resulting image forms a "streak" of light. Streak tubes are often used in chemistry or biology to observe milimeter sized objects but rarely for free space imaging.
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