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Generalized circuit model for coupled plasmonic systems.
Felix Benz, Bart de Nijs, Christos Tserkezis, Rohit Chikkaraddy, Daniel O Sigle, Laurynas Pukenas, Stephen D Evans, Javier Aizpurua, Jeremy J Baumberg
OAI: oai:www.repository.cam.ac.uk:1810/293464 • DOI: 10.17863/CAM.40609
Abstract
We develop an analytic circuit model for coupled plasmonic dimers separated by small gaps that provides a complete account of the optical resonance wavelength. Using a suitable equivalent circuit, it shows how partially conducting links can be treated and provides quantitative agreement with both experiment and full electromagnetic simulations. The model highlights how in the conducting regime, the kinetic inductance of the linkers set the spectral blue-shifts of the coupled plasmon.