19 April 2013
Our paper “Coherent storage of temporally multimode light using a spin-wave atomic frequency comb memory” has been published in NJP, in the special “Quantum memory” focus.
Fig: (a) Upper panel: the pulse sequence used for the interference experiment. Lower panel: visibility and maximum peak area versus TS. The dots (crosses) correspond to the measured visibility (area).
Here is the abstract :
We report on the 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 hyperfine levels using strong single-frequency transfer pulses. Using this scheme, a total of five 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.
Ref: Coherent storage of temporally multimode light using a spin-wave atomic frequency comb memory
M. Gündoğan, M. Mazzera, P. M. Ledingham, M. Cristiani and H. de Riedmatten
New J. Phys. 15 045012, 2013.