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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: Grover Swartzlander
  • Vol. 30, Iss. 3 — Mar. 1, 2013
  • pp: 512–517

Sub-half-wavelength atom localization of a V-type three-level atom via relative phase

Mostafa Sahrai and Habib Tajalli  »View Author Affiliations

JOSA B, Vol. 30, Issue 3, pp. 512-517 (2013)

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Coherent interaction of an atom with a position-dependent standing-wave cavity field can impart position information of a moving atom through the cavity leading to subwavelength atom localization. We show that the position of the atom along the standing-wave field is determined when the probe-field absorption is measured. We find out that absorption of the weak probe field at a certain frequency leads to subwavelength localization of the atom in either of the two half-wavelength regions of the cavity field by appropriate choice of the system parameters. In addition, we demonstrate that the position information of a three-level V-shaped moving atom strongly depends on the relative phase of applied fields. By appropriate choice of the relative phase, it is shown that the scheme can be used for localizing an atom flying through the standing-wave field to the sub-half-wavelength domain.

© 2013 Optical Society of America

OCIS Codes
(020.1670) Atomic and molecular physics : Coherent optical effects
(270.1670) Quantum optics : Coherent optical effects
(300.1030) Spectroscopy : Absorption

ToC Category:
Atomic and Molecular Physics

Original Manuscript: September 24, 2012
Revised Manuscript: December 1, 2012
Manuscript Accepted: January 2, 2013
Published: February 8, 2013

Mostafa Sahrai and Habib Tajalli, "Sub-half-wavelength atom localization of a V-type three-level atom via relative phase," J. Opt. Soc. Am. B 30, 512-517 (2013)

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