Electrical circuit model of arrays of resonant elements

Lomanets, V.; Zhuromskyy, O.; Onishchukov, G.; Peschel, U.

doi:10.1103/PhysRevB.85.125110

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Electrical circuit model of arrays of resonant elements

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Onishchukov, G.
Optical Communication, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Peschel, U.
Nonlinear Optics and Nanophotonics, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Lomanets, V., Zhuromskyy, O., Onishchukov, G., & Peschel, U. (2012). Electrical circuit model of arrays of resonant elements. PHYSICAL REVIEW B, 85(12): 125110. doi:10.1103/PhysRevB.85.125110.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-68E1-9

Abstract

We present an effective electrical circuit model that can be used for a quasianalytic analysis of electromagnetic oscillations in arrays of coupled elements, resonant in the microwave domain. The model accounts for electric and magnetic interactions between charges and currents excited in individual resonators. Respective coupling coefficients can be calculated from the field and current distributions in a subsystem of just one or two elements, provided by a finite-difference electromagnetic solver. The model was used to investigate current distributions and dispersion relations of wave propagation on chains of coupled split-ring resonators. The change of the dispersion characteristics from forward to backward propagating wave type observed experimentally is readily reproduced by the model.