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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 25 — Dec. 5, 2011
  • pp: 25823–25832

Two-dimensional sub-half-wavelength atom localization via controlled spontaneous emission

Ren-Gang Wan and Tong-Yi Zhang  »View Author Affiliations


Optics Express, Vol. 19, Issue 25, pp. 25823-25832 (2011)
http://dx.doi.org/10.1364/OE.19.025823


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Abstract

We propose a scheme for two-dimensional (2D) atom localization based on the controlled spontaneous emission, in which the atom interacts with two orthogonal standing-wave fields. Due to the spatially dependent atom-field interaction, the position probability distribution of the atom can be directly determined by measuring the resulting spontaneously emission spectrum. The phase sensitive property of the atomic system leads to quenching of the spontaneous emission in some regions of the standing-waves, which significantly reduces the uncertainty in the position measurement of the atom. We find that the frequency measurement of the emitted light localizes the atom in half-wavelength domain. Especially the probability of finding the atom at a particular position can reach 100% when a photon with certain frequency is detected. By increasing the Rabi frequencies of the driving fields, such 2D sub-half-wavelength atom localization can acquire high spatial resolution.

© 2011 OSA

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

ToC Category:
Atomic and Molecular Physics

History
Original Manuscript: November 3, 2011
Revised Manuscript: November 17, 2011
Manuscript Accepted: November 17, 2011
Published: December 2, 2011

Citation
Ren-Gang Wan and Tong-Yi Zhang, "Two-dimensional sub-half-wavelength atom localization via controlled spontaneous emission," Opt. Express 19, 25823-25832 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-25-25823


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