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Reversible optical memory for twisted photons |
Optics Letters, Vol. 38, Issue 5, pp. 712-714 (2013)
http://dx.doi.org/10.1364/OL.38.000712
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Abstract
We report on an experiment in which orbital angular momentum (OAM) of light is mapped at the single-photon level into and out of a cold atomic ensemble. Based on the dynamic electromagnetically induced transparency protocol, the demonstrated optical memory enables the reversible mapping of Laguerre–Gaussian modes with preserved handedness of the helical phase structure. The demonstrated capability opens the possibility to the storage of qubits encoded as superpositions of OAM states and to multidimensional light matter interfacing.
© 2013 Optical Society of America
OCIS Codes
(020.1670) Atomic and molecular physics : Coherent optical effects
(210.4680) Optical data storage : Optical memories
(270.0270) Quantum optics : Quantum optics
(050.4865) Diffraction and gratings : Optical vortices
(270.5585) Quantum optics : Quantum information and processing
ToC Category:
Atomic and Molecular Physics
History
Original Manuscript: December 10, 2012
Revised Manuscript: January 23, 2013
Manuscript Accepted: January 24, 2013
Published: February 25, 2013
Citation
L. Veissier, A. Nicolas, L. Giner, D. Maxein, A. S. Sheremet, E. Giacobino, and J. Laurat, "Reversible optical memory for twisted photons," Opt. Lett. 38, 712-714 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-5-712
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