Capacitance tuning of nanoscale split-ring resonators

Claus Jeppesen, Asger Mortensen, Anders Kristensen

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    Abstract

    We investigate the capacitance tuning of nanoscale split-ring resonators. Based on a simple inductor-capacitor circuit model, we derive an expression, where the inductance is proportional to the area while the capacitance reflects the aspect ratio of the slit. The resonance frequency may thus be tuned by the slit aspect ratio leaving the area, the lattice constant , and nearest-neighbor coupling in periodic structures invariant. Experimental data follow the predictions of the simple LC-model.
    Original languageEnglish
    JournalApplied Physics Letters
    Volume95
    Issue number19
    Pages (from-to)193108
    ISSN0003-6951
    DOIs
    Publication statusPublished - 2009

    Bibliographical note

    Copyright (2009) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

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