This Tiny Light-Emitting Device Flashes 90 Billion Times a Second

This Tiny Light-Emitting Device Flashes 90 Billion Times a Second:

This may look like a piece of abstract art, but you’re actually looking at the cutting-edge of optical technology. Using a branch of physics known as plasmonics, this microscopic set-up can pulse light on-and-off a bewildering 90 billion times per second.

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