Coupled-mode approach to surface plasmon polaritons in nonlinear periodic structures.
We present a coupled-mode theory describing light propagation in an array of nonlinear plasmonic waveguides. Our model predicts a two-band dependence of the propagation constant versus transverse quasi-momentum and existence of discrete and gap plasmon solitons.
Centre for Photonics and Photonic Materials, Department of Physics, University of Bath, Bath BA2 7AY, UK.
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A
Marini
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AV
Gorbach
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Skryabin