R&D Mag – MIT and Harvard University has achieved a crucial long-term goal of such efforts: the ability to convert a laser beam into a stream of single photons, or particles of light, in a controlled way. The successful demonstration of this achievement is detailed in Nature by MIT doctoral student Thibault Peyronel and colleagues.
In the new system, no matter how many photons are sent into such a cloud of atoms, only one at a time emerges from the other side. The cloud acts as a kind of turnstile for photons, forcing a jumbled mob into an orderly succession of individuals. more> http://tinyurl.com/d78du8z