Subwavelength atom localization via amplitude and phase control of the absorption spectrum. II
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Date
2006
Authors
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Journal ISSN
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Publisher
American Physical Society
Abstract
Interaction of the internal states of an atom with spatially dependent standing-wave cavity field can impart position information of the atom passing through it leading to subwavelength atom localization. We recently demonstrated a different regime of atom localization [Phys. Rev. A 72, 013820 (2005)], namely sub-half-wavelength localization through phase control of electromagnetically induced transparency. This regime corresponds to extreme localization of atoms within a chosen half-wavelength region of the standing-wave cavity field. Here we present further investigation of the simplified model considered earlier and show interesting features of the proposal. We show how the model can be used to simulate a variety of energy-level schemes. Furthermore, the dressed-state analysis is employed to explain the emergence and suppression of the localization peaks, and the peak positions and widths. The range of parameters for obtaining clean sub-half-wavelength localization is identified.
Description
Journals published by the American Physical Society can be found at http://publish.aps.org/
Keywords
AUTLER-TOWNES MICROSCOPY, POSITION MEASUREMENT, OPTICAL-FIELDS, SINGLE-ATOM, DIFFRACTION, SPECTROSCOPY, INTERFERENCE, LIMIT, Optics, Physics
Citation
KT Kapale and M. Suhail Zubairy. Phys.Rev.A 73 023813 2006. "Copyright (2006) by the American Physical Society."