A modal analysis method to describe weak nonlinear effects in metamaterials

Details A modal analysis method to describe weak nonlinear effects in metamaterials A modal analysis method to describe weak nonlinear effects in metamaterials

2012-01-04

arxiv.org/abs/1201.0984v1

Physics

Optics

10 pages, 5 figures

Scientific paper

We apply a rigorous eigenmode analysis to study the electromagnetic properties of linear and weakly nonlinear metamaterials. The nonlinear response can be totally described by the linear eigenmodes when weak nonlinearities are attributed to metamaterials. We use this theory to interpret intrinsic second-harmonic spectroscopy on metallic metamaterials. Our study indicates that metamaterial eigenmodes play a critical role in optimizing a nonlinear metamaterial response to the extent that a poorly optimized modal pattern overwhelms the widely recognized benefits of plasmonic resonant field enhancements.

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