Optical Properties of Modified Nanorod Particles for Biomedical Sensing

Renato Iovine, Luigi La Spada, Lucio Vegni

    Research output: Contribution to journalArticlepeer-review

    21 Citations (Scopus)


    In this paper, an analytical and numerical investigation for modified gold nanorod particles, operating in the visible and in the
    infrared regime is proposed. The modified particles consist in a core/shell structure (dielectric core/metallic shell) embedded in a
    dielectric environment. Their electromagnetic properties, in terms of extinction cross section (absorption and scattering) for both
    longitudinal and transverse modes excitation, are evaluated. In particular, new analytical models are developed, describing their
    resonant behavior. Good agreement among the analytical, numerical, and experimental results was achieved. Exploiting the obtained
    models, the nanoparticle sensitivity was studied. Analytical and full wave results validate the high sensitivity performances and the
    potential role of such structures to be used for sensing applications.
    Original languageEnglish
    Article number7004004
    Pages (from-to)169-172
    Number of pages4
    JournalIEEE Transactions on Magnetics
    Issue number2
    Publication statusPublished - 2014


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