This little light of mine: Changing the colour of single photons emitted by quantum dots

Researchers at the National Institute of Standards and Technology have demonstrated for the first time the conversion of near-infrared 1,300 nm wavelength single photons emitted from a true quantum source, a semiconductor quantum dot, to a near-visible wavelength of 710 nm. The ability to change the colour of single photons may aid in the development of hybrid quantum systems for applications in quantum communication, computation and metrology...

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