Harmonic Generation by Metal Nanostructures Optically Coupled to Two-Dimensional Transition-Metal Dichalcogenide

Elena Drobnyh, Ruth Pachter, Maxim Sukharev

Research output: Contribution to journalArticle

Abstract

Rigorous electrodynamical simulations based on the nonlinear Drude model are performed to investigate the influence of strong coupling on harmonic generation by periodic metal gratings. It is shown that a thin dispersive material with a thirδ-order nonlinearity strongly coupled to surface plasmon-polaritons significantly affects even harmonics generated solely by the metal. The physical nature of this effect is explained using a simple analytical model and further supported by numerical simulations. Furthermore, the behavior of the second and third harmonics is investigated as a function of various physical parameters of the model material system, revealing highly complex dynamics. The nonlinear optical response of two-δimensional few-layer WS 2 with both seconδ- and thirδ-order susceptibilities coupled to a periodic plasmonic grating is shown to have a significant effect on the second harmonic generation of the metal.

Original languageEnglish (US)
Pages (from-to)6898-6904
Number of pages7
JournalJournal of Physical Chemistry C
Volume123
Issue number11
DOIs
StatePublished - Mar 21 2019

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Harmonic generation
Transition metals
Nanostructures
harmonic generations
Metals
transition metals
gratings
metals
harmonics
polaritons
Analytical models
simulation
nonlinearity
magnetic permeability
Computer simulation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

Cite this

Harmonic Generation by Metal Nanostructures Optically Coupled to Two-Dimensional Transition-Metal Dichalcogenide. / Drobnyh, Elena; Pachter, Ruth; Sukharev, Maxim.

In: Journal of Physical Chemistry C, Vol. 123, No. 11, 21.03.2019, p. 6898-6904.

Research output: Contribution to journalArticle

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