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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: Grover Swartzlander
  • Vol. 30, Iss. 8 — Aug. 1, 2013
  • pp: 2333–2339

Coherent generation and efficient manipulation of dual-channel robust stationary light pulses in ultracold atoms

Yan Zhang, Qian-Qian Bao, Nuo Ba, Cui-Li Cui, and Jin-Hui Wu  »View Author Affiliations

JOSA B, Vol. 30, Issue 8, pp. 2333-2339 (2013)

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We study the dynamic processes of reversible dual-channel light memory in a double-tripod atomic system by modulating only a pair of counterpropagating control fields in time. We find that two pairs of stationary light pulses (SLPs) can be simultaneously generated when we switch on both control fields after storage. Two incident signal fields in two channels can be released either simultaneously from the same surface of the sample, or at different times from the same or different surfaces of the sample, depending on the time modulation of the two control fields, the time sequence of the input signal fields, and the group velocities of the signal fields propagating in medium, which could be successfully manipulated in each channel. Comparing with the light storage in spin-wave excitations, the SLPs may suffer a little space-dependent diffusion but maintain optical components required for nonlinear optical interactions. These results could be used to study the enhanced low-noises nonlinear interaction between dual-channel SLPs, which can maximize the interaction time. Besides, this scheme could also be explored to design synchronous multitasking information processing during light memory processes at low-light even below single-photon level.

© 2013 Optical Society of America

OCIS Codes
(270.0270) Quantum optics : Quantum optics
(270.1670) Quantum optics : Coherent optical effects
(270.5585) Quantum optics : Quantum information and processing

ToC Category:
Quantum Optics

Original Manuscript: March 4, 2013
Revised Manuscript: July 6, 2013
Manuscript Accepted: July 12, 2013
Published: August 1, 2013

Yan Zhang, Qian-Qian Bao, Nuo Ba, Cui-Li Cui, and Jin-Hui Wu, "Coherent generation and efficient manipulation of dual-channel robust stationary light pulses in ultracold atoms," J. Opt. Soc. Am. B 30, 2333-2339 (2013)

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