Subwavelength modulational instability and plasmon oscillons in nanoparticle arrays

Abstract

We study modulational instability in nonlinear arrays of subwavelength metallic nanoparticles, and analyze numerically nonlinear scenarios of the instability development. We demonstrate that modulational instability can lead to the formation of regular periodic or quasi-periodic modulations of the polarization. We reveal that such nonlinear nanoparticle arrays can support long-lived standing and moving oscillating nonlinear localized modes - plasmon oscillons.

5 pages, 5 figures, published in Physical Review Letters

References in corpus (6)

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• Propagation of optical excitations by dipolar interactions in metal nanoparticle chains
• Modulation Instability and Pattern Formation in Spatially Incoherent Light Beams
• Surface Plasmon Dispersion Relations in Chains of Metallic Nanoparticles: Exact Quasistatic Calculation
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• Subwavelength Plasmonic Lattice Solitons in Arrays of Metallic Nanowires

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