Shaping Quantum Pulses of Light Via Coherent Atomic Memory

M. D. Eisaman, L. Childress, A. André, F. Massou, A. S. Zibrov, M. D. Lukin
2004 Physical Review Letters  
We describe a technique for generating pulses of light with controllable photon numbers, propagation direction, timing, and pulse shapes. The technique is based on preparation of an atomic ensemble in a state with a desired number of atomic spin excitations, which is later converted into a photon pulse. Spatio-temporal control over the pulses is obtained by exploiting long-lived coherent memory for photon states and electromagnetically induced transparency (EIT) in an optically dense atomic
more » ... ly dense atomic medium. Using photon counting experiments we observe generation and shaping of few-photon sub-Poissonian light pulses. We discuss prospects for controlled generation of high-purity n-photon Fock states using this technique.
doi:10.1103/physrevlett.93.233602 pmid:15601158 fatcat:gaqgq7lje5ap3o7hrg4lg6z2om