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Light trip
Scientists at the University of Central Florida said they understood how to make light pulses travel 30 times faster than usual, or even backwards.
"We are able to control the speed of the pulse by going into the pulse itself and reorganizing its energy so that its degrees of freedom in space and time mix," said the researcher Ayman Abouraddy in a statement. "We are very pleased with these results and hope that this is just the starting point for future research."
Photon Shake
Make no mistake: this is an extraordinary statement, and the original researchers say it could revolutionize optical communication.
But Abouraddy and his colleagues published the results in the prestigious peer-reviewed journal. Nature Communications, where they described the use of a device called "spatial light modulator" to entice the light pulses to move more or less quickly than usual or at the same time. towards.
Live fiber
In 2006, researchers made a similar feat with a light crossing an optical fiber. Now, according to the researchers, they can do the same trick in an open space.
"This is the first clear demonstration of controlling the speed of a pulsed light in a free space," said Abouraddy in a statement. "And it opens doors for many applications, an optical buffer being only one of them, but most importantly, it's simple, reproducible and reliable."
READ MORE: Researchers are developing a way to control the speed of light and send it back[[[[Phys.org]
More on the light: NASA's new animations show how light moves slowly in space
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