Radiation of varying frequencies emanate from a leaky waveguide at different angles. This rainbow of frequencies is the basis for a link discovery system for future terahertz data networks. (Image courtesy of Mittleman Lab/Brown University and Knightly Lab/Rice University)
Radiation of varying frequencies emanate from a leaky waveguide at different angles. This rainbow of frequencies is the basis for a link discovery system for future terahertz data networks. (Image courtesy of Mittleman Lab/Brown University and Knightly Lab/Rice University) Leaky waveguide could help devices find one another on future, high-speed data networks By Kevin Stacey - Special to Rice News When you open a laptop, a router can quickly locate it and connect it to the local Wi-Fi network. That ability, known as link discovery, is a basic element of any wireless network, and now a team of engineering researchers from Rice University and Brown University has developed a way to do that with terahertz radiation, the high-frequency waves that could one day make for ultrafast wireless data transmission. Because of their high frequency, terahertz waves can carry hundreds of times more data than the microwaves used to carry data today. But that high frequency also means that terahertz waves propagate differently than microwaves. Whereas microwaves emanate from a source in an omnidirectional broadcast, terahertz waves propagate in narrow beams.
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