Doping Quantum Dot Lasers Helps Release Light More Efficiently

Doping quantum dots (QDs) with additional electrons has been found to cause the specially designed QDs to produce laser light with less stimulation and less energy loss. By adding extra charge carriers to their QDs, researchers from Los Alamos National Laboratory’s Nanotech Team were able to block absorption and create a state of transparency without external stimulation, reducing the optical-gain threshold to virtually zero.

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