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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Grover Swartzlander
  • Vol. 30, Iss. 6 — Jun. 1, 2013
  • pp: 1532–1537

Generating and manipulating beating signals by a microwave field in four-level cold atoms

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


JOSA B, Vol. 30, Issue 6, pp. 1532-1537 (2013)
http://dx.doi.org/10.1364/JOSAB.30.001532


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Abstract

We propose an efficient scheme for the dynamic generation and manipulation of beating signals in a sample of cold atoms driven into the four-level quasi-Λ configuration. This scheme relies on a procedure of light storage and retrieval controlled by a classical coupling field with a microwave field introduced only in the retrieval stage. One quantum probe field, incident upon this atomic sample, is transformed into a collective excitation of atomic spin coherence and then into two optical components characterized by different time-dependent phases. Consequently the retrieved quantum probe field exhibits a series of maxima and minima (beating signals) in intensity due to the alternative constructive and destructive interference. This interesting phenomenon, in fact, involves the coherent conversion between single-mode and two-mode dark-state polaritons and could be explored to measure the microwave intensity with high-precision beating signals.

© 2013 Optical Society of America

OCIS Codes
(210.4680) Optical data storage : Optical memories
(270.0270) Quantum optics : Quantum optics
(270.1670) Quantum optics : Coherent optical effects

ToC Category:
Quantum Optics

History
Original Manuscript: February 22, 2013
Revised Manuscript: April 9, 2013
Manuscript Accepted: April 17, 2013
Published: May 10, 2013

Citation
Qian-Qian Bao, Liu Yang, Nuo Ba, Cui-Li Cui, and Jin-Hui Wu, "Generating and manipulating beating signals by a microwave field in four-level cold atoms," J. Opt. Soc. Am. B 30, 1532-1537 (2013)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-30-6-1532

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