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Highly efficient 'no-waste' lasers developed
Electrical engineers have built the smallest room-temperature nanolaser to date, as well as a highly efficient "thresholdless" laser that funnels all its photons into lasing, without any waste.
The two new lasers, developed by a team of researchers from the University of California, San Diego, require very low power to operate, which is an important breakthrough since lasers usually require greater
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