Electromagnetic wave propagation in a multilayer silver particle

    Authors

    S. L. Zou

    Comments

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    Abbreviated Journal Title

    Chem. Phys. Lett.

    Keywords

    ENHANCED RAMAN-SCATTERING; NANOPARTICLE ARRAY STRUCTURES; SURFACE-PLASMON RESONANCE; WHISPERING-GALLERY MODES; METAL; NANOPARTICLES; SINGLE; GUIDES; NANOSTRUCTURES; NANOSHELLS; MOLECULES; Chemistry, Physical; Physics, Atomic, Molecular & Chemical

    Abstract

    The whispering gallery modes (WGM) of a 500 nm radius silver core shell particle are investigated using general Mie theory. The increase in the shell thickness leads to narrow WGM resonances and a blue shift in the resonance wavelengths. The light propagation within a vacuum cavity with a thickness of less than 1% of the incident wavelength is demonstrated, in which only the transverse electric modes are excited. The discovered phenomena can be of assistance in the investigations of controllable electromagnetic wave propagation in a subwavelength space or in the development of novel nanosensors. (c) 2008 Elsevier B.V. All rights reserved.

    Journal Title

    Chemical Physics Letters

    Volume

    454

    Issue/Number

    4-6

    Publication Date

    1-1-2008

    Document Type

    Article

    Language

    English

    First Page

    289

    Last Page

    293

    WOS Identifier

    WOS:000254425200028

    ISSN

    0009-2614

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