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Powerful laser miniaturized from tabletop to microchip
An electronics-enabled platform for titanium–sapphire photonic devices.
Technologies that take advantage of the speed of light can make vast improvements to conventional electronics. But these ‘photonic’ technologies often require large, sophisticated devices — sometimes several at a time — and this makes them bulky and costly to produce. Writing in Nature, Yang et al. 2 report a sapphire-based platform that fulfils this brief, enabling devices that are less than 0.15 square millimetres and use minimal power, but can still generate high-performance laser light.
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