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 quasiperiodic modulations of the polarization. We reveal that such nonlinear nanoparticle arrays can support long-lived standing and moving oscillating nonlinear localized modes—plasmon oscillons.
- Received 21 September 2011
DOI:https://doi.org/10.1103/PhysRevLett.108.093901
© 2012 American Physical Society