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Trillion-frame-per-second video Anonymous 11/12/14(Wed)11:44 No. 4001

>By using optical equipment in a totally unexpected way, MIT researchers have created an imaging system that makes light look slow

>MIT researchers have created a new imaging system that can acquire visual data at a rate of one trillion exposures per second. That’s fast enough to produce a slow-motion video of a burst of light traveling the length of a one-liter bottle, bouncing off the cap and reflecting back to the bottle’s bottom.

>Media Lab postdoc Andreas Velten, one of the system’s developers, calls it the “ultimate” in slow motion: “There’s nothing in the universe that looks fast to this camera,” he says.

>The system relies on a recent technology called a streak camera, deployed in a totally unexpected way. The aperture of the streak camera is a narrow slit. Particles of light — photons — enter the camera through the slit and pass through an electric field that deflects them in a direction perpendicular to the slit. Because the electric field is changing very rapidly, it deflects late-arriving photons more than it does early-arriving ones.

>The image produced by the camera is thus two-dimensional, but only one of the dimensions — the one corresponding to the direction of the slit — is spatial. The other dimension, corresponding to the degree of deflection, is time. The image thus represents the time of arrival of photons passing through a one-dimensional slice of space.

http://web.mit.edu/newsoffice/2011/trillion-fps-camera-1213.html
Capturing video at the speed o…
http://web.media.mit.edu/~raskar/trillionfps/

>>	Anonymous 11/12/16(Fri)15:47 No. 4003 This is incredibly fascinating. But I'm having a hard time thinking of any practical use for this.

>>	thatother1dude!!p3AwN0BGt5 11/12/16(Fri)16:41 No. 4004 >>4003 The video mentions it's useful for medical scans.

>>	Anonymous 11/12/17(Sat)20:55 No. 4006 >>4004 There are no processes in the body that travel anywhere close to the speed of light, not even nervous impulses (despite popular belief). I don't see why MRIs and fMRIs wouldn't be enough, and those have the advantage of looking inside the body.

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thatother1dude!!p3AwN0BGt5 11/12/18(Sun)00:21 No. 4007 >>4006 Rewatching, he said "imaging", not "scanning". He said it would be like ultrasound, but with light. What advantages there could be over ultrasound might be something they would have to test. He also mentioned it could be used for finding defects in materials.

>>	Anonymous 12/01/03(Tue)20:58 No. 4028 >>4003 It opens up new frontiers for all those reality shows that rely on them renting high-speed cameras for three hours and shooting things in empty warehouses.

>>	Nøpe 12/01/05(Thu)23:45 No. 4033 >>4003 What use is a newborn baby?

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Anonymous 12/01/06(Fri)18:09 No. 4035 >>4033 A newborn baby can be used for all sorts of things! It can be a paperweight, or a way of punishing friends by loaning it to them while it's colicky, a tool for picking up women, leverage for revenge or a sympathy gatherer or even an emergency food supply!

>>	Jeep-Eep, Shitposter Repentant 12/02/18(Sat)14:41 No. 4079 >>4035 And the value generally appreciates as it gets older!