SCIENCE - Superfast switching of quantum light sources

Usually, an elementary light source – such as an excited atom or molecule – emits light of a particular color at an unpredictable instance in time. Recently, however, scientists have shown that a light source can be coaxed to emit light at a desired moment in time, within an ultrashort burst. The superfast switching of a light source has applications in fast stroboscopes without laser speckle, in the precise control of quantum systems and for ult ...

http://www.sciencedaily.com/releases/2013/09/130927092348.ht