Megalith
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Researchers in the US had figured out how to carry additional information along a fiber optic cable by twisting the light into a spiral, but there was one problem: the detector required to read this information was “the size of a dining table.” Australia’s RMIT University has reportedly solved that problem with a new detector that is only the width of a human hair.
“We could produce the first chip that could detect this twisting and display it for mobile application,” Gu said. By twisting light into a spiral, engineers effectively create a third dimension for light to carry information: the level of orbital angular momentum, or spin. “It’s like DNA, if you look at the double helix spiral,” said Min Gu from RMIT University. “The more you can use angular momentum the more information you can carry.”
“We could produce the first chip that could detect this twisting and display it for mobile application,” Gu said. By twisting light into a spiral, engineers effectively create a third dimension for light to carry information: the level of orbital angular momentum, or spin. “It’s like DNA, if you look at the double helix spiral,” said Min Gu from RMIT University. “The more you can use angular momentum the more information you can carry.”