nugat Posted March 20, 2009 Share #1 Posted March 20, 2009 Advertisement (gone after registration) eg. Shooting the Invisible below. Full article here: The future of photography - tech - 16 September 2008 - New Scientist Shooting the invisible Satellite views of the Earth are often obscured by cloud. But a camera that exploits quantum physics to photograph images it can't directly see would have no such problems. Yanhua Shih of the University of Maryland and colleagues have built a prototype of just such a camera that exploits quantum effects that can link pairs of photons. A 'splitter' divides photons from a single light source into two beams, one headed towards the camera sensor and the other towards the object to be photographed. When a photon bounces off the toy, it is recorded by a photon detector beside it. Occasionally the photon detector and camera record a photon at exactly the same time. Those two photons are linked by a quantum effect called "two-photon interference", and both occupy a similar position in their respective beams. Whenever a photon reaches the camera at exactly the same time that its linked partner is detected bouncing off the toy and onto the photon detector's surface, a point is recorded in the image at the corresponding position. After 1000 or more linked photons reach the camera sensor, an image of object becomes clear, even though the camera itself has no view of it. See an image of a toy soldier taken by the quantum camera. Shih says his quantum camera idea could help satellites produce clear images of the Earth's surface through clouds. The Sun would be the source of light and a photon detector would need to be placed somewhere beneath the clouds. Read more about the quantum cameras. Link to post Share on other sites More sharing options...
Advertisement Posted March 20, 2009 Posted March 20, 2009 Hi nugat, Take a look here The Future of Photography. I'm sure you'll find what you were looking for!
regedit Posted March 20, 2009 Share #2 Posted March 20, 2009 An interesting subject. Thanks for sharing! Link to post Share on other sites More sharing options...
adan Posted March 20, 2009 Share #3 Posted March 20, 2009 I love the "toy soldier" as subject matter - looking for that Pentagon contract, are we? Nothing like an image of a guy with a gun to loosen up the black-technology purse strings! Now all we have to do is persuade the "other side" to allow a Predator with a photon detector to fly around overhead below the clouds without shooting it down. (Of course, if it can fly around under the clouds without being shot down, it COULD always just carry a camera itself. But who would get a promotion out of suggesting THAT?) Link to post Share on other sites More sharing options...
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