摘要We present a realistic and efficient scheme for sub-half-wavelength atom localization. This scheme is based on the phase-dependent lectromagnetically induced transparency in a four-level system in the double-λ configuration. We use a strong bichromatic field (one component of which is standing-wave field) as the driving components, and a weak bichromatic field as the probe components. By choosing the collective phase of the four applied components, the atom is localized in either of the two half-wavelength regions with 50% detecting probability when the absorption to the probe fields is detected.
Abstract：We present a realistic and efficient scheme for sub-half-wavelength atom localization. This scheme is based on the phase-dependent lectromagnetically induced transparency in a four-level system in the double-λ configuration. We use a strong bichromatic field (one component of which is standing-wave field) as the driving components, and a weak bichromatic field as the probe components. By choosing the collective phase of the four applied components, the atom is localized in either of the two half-wavelength regions with 50% detecting probability when the absorption to the probe fields is detected.
(Mechanical effects of light on atoms, molecules, and ions)
引用本文:
GONG Cheng;HU Xiang-Ming;PENG Yan-Dong. Sub-Half-Wavelength Atom Localization Based on Phase-Dependent Electromagnetically Induced Transparency[J]. 中国物理快报, 2008, 25(2): 505-508.
GONG Cheng, HU Xiang-Ming, PENG Yan-Dong. Sub-Half-Wavelength Atom Localization Based on Phase-Dependent Electromagnetically Induced Transparency. Chin. Phys. Lett., 2008, 25(2): 505-508.
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2008, Vol. 25 
