Gridded "Superlens" Brings Wireless Power Transmission A Step Closer

Illustration for article titled Gridded Superlens Brings Wireless Power Transmission A Step Closer

Above is a close-up of what developers call a "superlens," a device that can focus low-energy magnetic waves over a distance. The result? Wireless power generation over nearly one foot of air between transmitter and receiver.

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Illustration for article titled Gridded Superlens Brings Wireless Power Transmission A Step Closer

That might not seem like a great feat, but its Duke University creators say the superlens for the first time demonstrates that electricity can be sent efficiently and safely over a gap larger than either transmitter or receiver.

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It's a significant step toward realizing Nikola Tesla's century-old dream of transmitting energy without wires.


This post originally published on Txchnologist. Txchnologist is a digital magazine presented by GE that explores the wider world of science, technology and innovation.

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DISCUSSION

From the source article:

"You only get about 0.1 percent of what’s inside the coil.” But with the superlens in place, he explained, the magnetic field is focused nearly a foot away with enough strength to induce noticeable electric current in an identically sized receiver coil."

From the Giz article : "electricity can be sent efficiently "

That's quite a jump from one article to this one