Home Energy Supremely Small BICSEL Laser Traps Light in Open Air

Supremely Small BICSEL Laser Traps Light in Open Air

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 Tapping into an idea from quantum mechanics that dates back to the Jazz Age, researchers have created a new type of laser that could be much tinier than conventional lasers, potentially leading to faster optical communications and more powerful computers.

The laser relies on a phenomenon known as bound states in the continuum (BICs), which allows researchers to build a laser cavity in open air. “It’s not every day that you have the possibility to make a new type of laser,” says Boubacar Kante, a professor of electrical and computer engineering at the University of California, San Diego, who with his colleagues described their laser in this week’s issue of Nature.