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    Lamb shift due to surface plasmon polariton modes

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    PhysRevA.77.062501.pdf (214.5Kb)
    Date
    2008
    Author
    Sun, Qingqing
    Al-Amri, M.
    Kamli, Ali
    Zubairy, M. Suhail
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    Abstract
    The Lamb shift of a hydrogen atom due to the surface plasmon polariton (SPP) modes is calculated and we observe both band edge and surface enhancement. The atom sits inside a thin metal slab which is sandwiched by two semi-infinite dielectrics. The SPP dispersion relation shows a band gap if the two dielectrics have different dielectric constants. We find the magnitude of the 2P(1/2) level shift increases rapidly when the level separation is close to the high band edge. But the low band edge enhancement can be overwhelmed by the decreasing trend of the shift. If the atom is placed close to either surface or if the slab is narrow, all the level shifts would be large because of the surface enhancement. An interesting feature is that the 2P(1/2) level shift can be larger than the 2S level shift due to the nonisotropic fields.
    URI
    http://dx.doi.org/10.1103/PhysRevA.77.062501
    http://hdl.handle.net/1969.1/126620
    Description
    Journals published by the American Physical Society can be found at http://publish.aps.org/
    Subject
    PHOTONIC BAND-GAP
    ELECTRON-ENERGY LOSSES
    THIN-FILMS
    QUANTUM OPTICS
    2-LEVEL ATOMS
    EMISSION
    ORIGIN
    LIGHT
    Optics
    Physics
    Department
    Physics and Astronomy
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    Citation
    Qingqing Sun, M. Al-Amri, Ali Kamli and M. Suhail Zubairy. Phys.Rev.A 77 062501 2008. "Copyright (2008) by the American Physical Society."

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