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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 10 — May. 7, 2012
  • pp: 11433–11444

Generation of non-classical correlated photon pairs via a ladder-type atomic configuration: theory and experiment

Dong-Sheng Ding, Zhi-Yuan Zhou, Bao-Sen Shi, Xu-Bo Zou, and Guang-Can Guo  »View Author Affiliations


Optics Express, Vol. 20, Issue 10, pp. 11433-11444 (2012)
http://dx.doi.org/10.1364/OE.20.011433


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Abstract

We experimentally generate a non-classical correlated two-color photon pair at 780 and 1529.4 nm in a ladder-type configuration using a hot 85Rb atomic vapor with the production rate of ~107/s. The non-classical correlation between these two photons is demonstrated by strong violation of Cauchy-Schwarz inequality by the factor R = 48 ± 12. Besides, we experimentally investigate the relations between the correlation and some important experimental parameters such as the single-photon detuning, the powers of pumps. We also make a theoretical analysis in detail and the theoretical predictions are in reasonable agreement with our experimental results.

© 2012 OSA

OCIS Codes
(190.7220) Nonlinear optics : Upconversion
(270.1670) Quantum optics : Coherent optical effects
(190.4223) Nonlinear optics : Nonlinear wave mixing

ToC Category:
Quantum Optics

History
Original Manuscript: February 9, 2012
Revised Manuscript: March 21, 2012
Manuscript Accepted: April 26, 2012
Published: May 4, 2012

Citation
Dong-Sheng Ding, Zhi-Yuan Zhou, Bao-Sen Shi, Xu-Bo Zou, and Guang-Can Guo, "Generation of non-classical correlated photon pairs via a ladder-type atomic configuration: theory and experiment," Opt. Express 20, 11433-11444 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-10-11433


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