Fano plasmonics goes nonlinear

Maxim Sukharev, Elena Drobnyh, Ruth Pachter

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


We investigate the process of the second harmonic generation by plasmonic nano-antennas that exhibit Fano-like resonances. A rigorous fully vectorial Maxwell-hydrodynamics approach is employed to directly calculate the second order susceptibilities as a function of the pump frequency, considering a periodic array of nanodolmens comprised of three Au nanorods. The results of the numerical simulations demonstrate a noticeable enhancement of the second harmonic efficiency by the antisymmetric mode. Additionally, a simple analytical model based on two coupled nonlinear oscillators is proposed. It is shown that the second order optical response can be significantly enhanced at the frequency of the antisymmetric normal mode, thus supporting our numerical results.

Original languageEnglish (US)
Article number134105
JournalJournal of Chemical Physics
Issue number13
StatePublished - Oct 7 2022

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry


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