Paint on lasers to alleviate bottlenecks

TIPPINST – Identifying bottlenecks in microprocessor architecture is forming a cornerstone of my PhD research. Alleviaiting bottlenecks and overcoming the limitations of silicon is a challenge that is facing the industry. The Register reports on work carried out by the University of Toronto that addresses this issue.
The Toronto team are the first to make a colloidal quantum dot laser produce invisible infrared light. This is the wavelength used to carry information in fibre optics. Main author of the report Sjoerd Hoogland told Science Blog: “We made our particles just the right size to generate laser light at exactly this wavelength.” Their research was recently published in the journal Optics Express,
Integrating current bulky laser technology onto chips would be impossible, but the paint-on nanocrystal lasers could be powered by the electronics already on microchips, massively speeding up the links between microprocessor units.
It was a breeze to manufacture too. Hoogland said: “I made the laser by dipping a miniature glass tube in the paint and then drying it with a hairdryer.”

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