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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 33, Iss. 11 — Jun. 1, 2008
  • pp: 1213–1215

Low-frequency vacuum squeezing via polarization self-rotation in Rb vapor

Eugeniy E. Mikhailov and Irina Novikova  »View Author Affiliations


Optics Letters, Vol. 33, Issue 11, pp. 1213-1215 (2008)
http://dx.doi.org/10.1364/OL.33.001213


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Abstract

We observed squeezed vacuum light at 795 nm in Rb 87 vapor via resonant polarization self-rotation and report noise sidebands suppression of 1 dB below shot-noise level spanning from 30 kHz to 1.2 MHz frequencies. To our knowledge, this is the first demonstration of submegahertz quadrature vacuum squeezing in atomic systems. The spectral range of observed squeezing matches well typical bandwidths of electromagnetically induced transparency (EIT) resonances, making this simple technique for generation of optical fields with nonclassical statistics at atomic transitions wavelengths attractive for EIT-based quantum information protocols applications.

© 2008 Optical Society of America

OCIS Codes
(020.1670) Atomic and molecular physics : Coherent optical effects
(020.6580) Atomic and molecular physics : Stark effect
(140.0140) Lasers and laser optics : Lasers and laser optics
(270.0270) Quantum optics : Quantum optics
(270.6570) Quantum optics : Squeezed states

ToC Category:
Quantum Optics

History
Original Manuscript: February 12, 2008
Revised Manuscript: April 7, 2008
Manuscript Accepted: April 10, 2008
Published: May 27, 2008

Citation
Eugeniy E. Mikhailov and Irina Novikova, "Low-frequency vacuum squeezing via polarization self-rotation in Rb vapor," Opt. Lett. 33, 1213-1215 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-11-1213


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