The world with a trillion FPS Camera, Camera Culture, Bawendi Lab, MIT





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Published on Dec 12, 2011

In this video we show the propagation of a laser pulse through different scenes:
A toy in front of a mirror,
a piece of rock candy,
an orange (hit from the back),
the corner of 3 walls,
a small cup and some grapes,
a grating under water.

We have built an imaging solution that allows us to visualize propagation of light at an effective rate of one trillion frames per second. Direct recording of light at such a frame rate with sufficient brightness is nearly impossible. We use an indirect 'stroboscopic' method that combines millions of repeated measurements by careful scanning in time and viewpoints.

The device has been developed by the MIT Media Lab's Camera Culture group in collaboration with Bawendi Lab in the Department of Chemistry at MIT. A laser pulse that lasts less than one trillionth of a second is used as a flash and the light returning from the scene is collected by a camera at a rate equivalent to roughly 1 trillion frames per second. However, due to very short exposure times (roughly one trillionth of a second) and a narrow field of view of the camera, the video is captured over several minutes by repeated and periodic sampling.

For more info visit http://raskar.info/trillionfps

Music: "Rising" by Kevin MacLeod (http://music.incompetech.com/royaltyf...)

Comments • 83

Ben Green
A pulse of light into a prism would be cool
truely amazing!!! 
@vanHillQ Well, you could upload a bullet video but it'd probly be lame anyway because there wouldn't really happen anything...
Mexer's Music
well my camera has got 30 fos
@KRRands I'm 15. And, I think this is utterly one of the most amazing things I've ever seen.. But then again, I have more of a science background than most 15 year olds.. So, whatever..
Optical Fiber!
very cool! I would like to see a light wave bouncing off from several mirrors standing face-to-face 
In the last scenary it seems to me that I'm actually observing the two different forms of light, as after reflecting from the back of the water container, the pulse is "split" into several minor pulses whilst a wave of light still travels through the water reflecting fthe sides of the container...?
How about recording a pulse of light passing over a bullet mid flight, that would shut up these bullet people :P
@littlec916 *turns on lamp* *gasps* i see it! :D
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