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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 22 — Nov. 15, 2013
  • pp: 4833–4836

Generating squeezed vacuum field with nonzero orbital angular momentum with atomic ensembles

Mi Zhang, Joseph Soultanis, Irina Novikova, and Eugeniy E. Mikhailov  »View Author Affiliations

Optics Letters, Vol. 38, Issue 22, pp. 4833-4836 (2013)

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We demonstrated that by using a pump field with nonzero orbital angular momentum (OAM) in the polarization self-rotation squeezing process it is possible to generate a squeezed vacuum optical field with the matching OAM. We found a similar level of maximum quantum noise reduction for a first-order Laguerre–Gaussian pump beam and a regular Gaussian pump beam, even though the optimal operational conditions differed in these two cases. Also, we investigated the effect of self-defocusing on the level of the vacuum squeezing by simultaneously monitoring the minimum quantum noise level and the output beam transverse profile at various pump laser powers and atomic densities and found no direct correlations between the increased beam size and the degree of measured squeezing.

© 2013 Optical Society of America

OCIS Codes
(020.1670) Atomic and molecular physics : Coherent optical effects
(270.0270) Quantum optics : Quantum optics
(270.1670) Quantum optics : Coherent optical effects
(270.6570) Quantum optics : Squeezed states

ToC Category:
Quantum Optics

Original Manuscript: May 24, 2013
Revised Manuscript: September 16, 2013
Manuscript Accepted: October 14, 2013
Published: November 14, 2013

Mi Zhang, Joseph Soultanis, Irina Novikova, and Eugeniy E. Mikhailov, "Generating squeezed vacuum field with nonzero orbital angular momentum with atomic ensembles," Opt. Lett. 38, 4833-4836 (2013)

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