Tim Danton is a journalist and editor who has been covering technology and innovation since 1999. He is currently the editor-in-chief of PC Pro, one of the U.K.'s leading technology magazines, and is the author of a computing history book called The Computers That Made Britain.
Stanford researchers have built a titanium-sapphire lasers that are 10,000 times smaller than any previous similar device and fit them onto a chip.
The experimental laser relies on two crucial processes. First, they ground a sapphire crystal down to a layer just a few hundred nanometers thick. They then fashioned a swirling vortex of tiny ridges, into which they shone a green laser pointer. With each rotation within that vortex, the laser’s intensity increased.
By submitting your information you agree to the Terms & Conditions and Privacy Policy and are aged 16 or over.One reason the team is so optimistic is that its lasers can be tuned to different wavelengths; specifically, from 700 to 1,000 nanometers, or red to infrared. "The first opportunity that we really do see is the academic research market," Yang said."As researchers, we know this need for lasers. And we know that what we can provide is much better than what’s currently on the market."
—Razor-thin crystalline film 'built atom-by-atom' gets electrons moving 7 times faster than in semiconductors
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