Subwavelength plasmonic kinks, solitons, and oscillons in arrays of nonlinear metallic nanoparticles

Roman E. Noskov*, Pavel A. Belov, Yuri S. Kivshar

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


We consider spatial hysteresis and modulational instability in arrays of nonlinear metallic nanoparticles. We show that such plasmonic systems are characterized by a bistable response, and they can support the propagation of dissipative switching waves (or plasmonic kinks) connecting the states with different polarization. We demonstrate that modulational instability, also inherent in our system, can lead to the formation of regular periodic or quasi-periodic modulations of the polarization. We reveal that arrays of metallic nanoparticles can support nonlinear localized modes of two different types - plasmon-solitons and plasmon-oscillons. They both possess deeply subwavelength size. However, the profile of plasmon-solitons is stationary; whereas plasmon-oscillons has the oscillating profile which can stand at rest or slowly drift along the chain.

Original languageEnglish
Title of host publicationNonlinear Optics and Applications VI
StatePublished - 2012
Externally publishedYes
EventNonlinear Optics and Applications VI - Brussels, Belgium
Duration: 16 Apr 201218 Apr 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


ConferenceNonlinear Optics and Applications VI


  • Plasmonics
  • bistability
  • modulational instability
  • nonlinear surface plasmon resonance


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