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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 27, Iss. 10 — Oct. 1, 2010
  • pp: 2035–2039

EIT-assisted large cross-Kerr nonlinearity in a four-level inverted-Y atomic system

J. Kou, R. G. Wan, Z. H. Kang, H. H. Wang, L. Jiang, X. J. Zhang, Y. Jiang, and J. Y. Gao  »View Author Affiliations


JOSA B, Vol. 27, Issue 10, pp. 2035-2039 (2010)
http://dx.doi.org/10.1364/JOSAB.27.002035


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Abstract

A four-level inverted-Y scheme with an electromagnetically induced transparency (EIT) core is investigated for the enhancement of cross-Kerr effect in rubidium atoms. When detunings of the coupling and control fields are appropriately set, an enhanced EIT window is observed, and the induced phase shift of the probe field due to cross-phase modulation (XPM) is obtained by measuring the dispersive property of the probe transition. The maximal XPM phase shift is about 12° under the current experimental conditions. The experimental measurements agree well with the theoretical calculations. The enhanced XPM phase shift in such an atomic system has applications in quantum nonlinear optics and quantum information science.

© 2010 Optical Society of America

OCIS Codes
(020.1670) Atomic and molecular physics : Coherent optical effects
(190.3270) Nonlinear optics : Kerr effect
(270.0270) Quantum optics : Quantum optics

ToC Category:
Atomic and Molecular Physics

History
Original Manuscript: July 2, 2010
Revised Manuscript: July 31, 2010
Manuscript Accepted: August 10, 2010
Published: September 16, 2010

Citation
J. Kou, R. G. Wan, Z. H. Kang, H. H. Wang, L. Jiang, X. J. Zhang, Y. Jiang, and J. Y. Gao, "EIT-assisted large cross-Kerr nonlinearity in a four-level inverted-Y atomic system," J. Opt. Soc. Am. B 27, 2035-2039 (2010)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-27-10-2035

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