Collective electromagnetic response of discrete metamaterial systems

Details Collective electromagnetic response of discrete metamaterial systems Collective electromagnetic response of discrete metamaterial systems

2010-12-17

arxiv.org/abs/1012.3928v1

Physics

Optics

4 pages

Scientific paper

We develop a general formalism to describe the interactions between a discrete set of plasmonic resonators mediated by the electromagnetic field. The resulting system of equations for closely-spaced meta-atoms represents a cooperative metamaterial response and we find that collective interactions between asymmetric split-ring resonators arranged in a 2D lattice explains the recent experimental observations of system-size dependent narrowing of the transmission resonance linewidth. We further show that this cooperative narrowing depends sensitively on the lattice spacing.

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