Direction-selective waveguide of a two-layer silver film with angled holes

    Authors

    H. N. Wang; Y. N. Guo; J. M. Reed;S. L. Zou

    Comments

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    Abbreviated Journal Title

    Chem. Phys. Lett.

    Keywords

    PLASMON-POLARITONS; PHOTONIC-CRYSTAL; SURFACE; LIGHT; SCATTERING; TRANSPORT; BENDS; Chemistry, Physical; Physics, Atomic, Molecular & Chemical

    Abstract

    Using the discrete dipole approximation (DDA) method, we investigated the propagation of light within the visible wavelength region for a two-layer silver film with periodic angled holes. The perforation of the holes at an angle of 45 degrees allows light to propagate selectively along different directions at two resonance wavelengths. The Poynting vector calculations show that light propagating along the direction of hole perforation at shorter wavelengths is due to the coupling between periodic holes, while the other one along the opposite direction at longer wavelengths is related to the coupling between the top and bottom layers in the film. (C) 2013 Elsevier B. V. All rights reserved.

    Journal Title

    Chemical Physics Letters

    Volume

    587

    Publication Date

    1-1-2013

    Document Type

    Article

    Language

    English

    First Page

    81

    Last Page

    84

    WOS Identifier

    WOS:000326104500015

    ISSN

    0009-2614

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