Phys. Rev. A 78, 033806 (2008) [9 pages]Efficient spatially resolved multimode quantum memoryReceived 30 March 2007; published 8 September 2008 Light storage in atomic ensembles has been implemented successfully, but the retrieval efficiency can be low. We propose to improve this efficiency with appropriately phase-matched backward propagating retrieval. This method allows for easy spatial filtering of the retrieved light; in addition, multiple optical modes can be stored in the transverse momentum of the ensemble. We model walk-off effects with a full numerical simulation, and confirm the applicability of the scheme. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.78.033806
DOI:
10.1103/PhysRevA.78.033806
PACS:
42.50.Gy, 42.50.Ct, 42.50.Ex
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