1301.3048 (Mustafa Gündoğan et al.)

Coherent Storage of Temporally Multimode Light Using a Spin-Wave Atomic
Frequency Comb Memory    [PDF]

Mustafa Gündoğan, Margherita Mazzera, Patrick M. Ledingham, Matteo Cristiani, Hugues de Riedmatten

We report on coherent and multi-temporal mode storage of light using the full atomic frequency comb memory scheme. The scheme involves the transfer of optical atomic excitations in Pr3+:Y2SiO5 to spin-waves in the hyperfine levels using strong single-frequency transfer pulses. Using this scheme, a total of 5 temporal modes are stored and recalled on-demand from the memory. The coherence of the storage and retrieval is characterized using a time-bin interference measurement resulting in visibilities higher than 80%, independent of the storage time. This coherent and multimode spin-wave memory is promising as a quantum memory for light.

View original: http://arxiv.org/abs/1301.3048