Stable solid-state source of single photons

Phys Rev Lett. 2000 Jul 10;85(2):290-3. doi: 10.1103/PhysRevLett.85.290.


Fluorescence light observed from a single nitrogen-vacancy center in diamond exhibits strong photon antibunching: The measured pair correlation function g((2))(0) shows that only one photon is emitted at a time. Nitrogen-vacancy centers are well localized, stable against photobleaching even at room temperature, and can be addressed in simple experimental configurations.