Blue shift of plasmonic resonance induced by nanometer scale anisotropy of chemically synthesized gold nanospheres

Ryoko Watanabe-Tamaki, Atsushi Ishikawa, Takuo Tanaka

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    4 Citations (Scopus)

    Abstract

    Anisotropic plasmonic responses on oblate spheroidal shape were investigated using chemically synthesized gold nanospheres. By employing the polarized transmission spectroscopy with oblique incidence, we observe 12-nm blue shift of the plasmonic resonant wavelength for gold nanospheres. The gold nanospheres with 3-nm deformation exhibited anisotropy by adsorbing on a substrate surface, resulting in the blue shift of plasmon resonant wavelength. The good agreement in measured and simulated transmission spectra leads to a precise design of gold nanospheres for plasmonic applications.

    Original languageEnglish
    Article number043110
    JournalApplied Physics Letters
    Volume102
    Issue number4
    DOIs
    Publication statusPublished - Jan 28 2013

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

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