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An optical antenna developed by researchers at the University of California, Berkeley, can, in principle, provide limitless bandwidth. The technology takes advantage of orbital angular momentum (OAM), a characteristic of light that enables multiplexing, or simultaneous transmission, exponentially greater than current technology.
According to Boubacar Kanté, the study’s principal investigator and the Chenming Hu Associate Professor at UC Berkeley’s Department of Engineering and Computer Sciences, current methods of transmitting signals through electromagnetic waves are approaching their limit. Frequencies are becoming clogged, and while the process and effect of polarization is able to double the amount information…READ MORE