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January 21, 2020 12:50 am
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/Vi_dNNmmTdo/ultrafast-camera-takes-1-trillion-frames-per-second-of-transparent-objects-phenomena
Ultrafast Camera Takes 1 Trillion Frames Per Second of Transparent Objects, Phenomena
After developing the world's fastest camera a little over a year ago, Caltech's Lihong Wang decided that wasn't good enough and started working on an even faster device. A new paper published in the journal Science Advances details a new camera from Wang that can take up to 1 trillion pictures per second of transparent objects. Phys.Org reports: The camera technology, which Wang calls phase-sensitive compressed ultrafast photography (pCUP), can take video not just of transparent objects but also of more ephemeral things like shockwaves and possibly even of the signals that travel through neurons. Wang explains that his new imaging system combines the high-speed photography system he previously developed with an old technology, phase-contrast microscopy, that was designed to allow better imaging of objects that are mostly transparent such as cells, which are mostly water. The fast-imaging portion of the system consists of something Wang calls lossless encoding compressed ultrafast technology (LLE-CUP). Unlike most other ultrafast video-imaging technologies that take a series of images in succession while repeating the events, the LLE-CUP system takes a single shot, capturing all the motion that occurs during the time that shot takes to complete. Since it is much quicker to take a single shot than multiple shots, LLE-CUP is capable of capturing motion, such as the movement of light itself, that is far too fast to be imaged by more typical camera technology. In the new paper, Wang and his fellow researchers demonstrate the capabilities of pCUP by imaging the spread of a shockwave through water and of a laser pulse traveling through a piece of crystalline material.Read more of this story at Slashdot.
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/Vi_dNNmmTdo/ultrafast-camera-takes-1-trillion-frames-per-second-of-transparent-objects-phenomena
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