PASADENA, Calif., Dec. 10 (UPI) -- U.S. scientists say they've managed to focus light into a beam just a few nanometers across, which could lead to new applications in computing and other fields.
Because light can carry greater amounts of data more efficiently than electrical signals traveling through copper wires, today's technology is increasingly based on optics, and focusing light into tinier spaces can squeeze more data through optical fibers and increase bandwidth, researchers at the California Institute of Technology reported.