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Related Experiment Video

Updated: Jun 25, 2026

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle
15:06

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle

Published on: January 3, 2016

Nonlocal and Nonlinear Plasmonics in Atomically Thin Heterostructures.

Line Jelver1, Joel D Cox1,2

  • 1POLIMA─Center for Polariton-driven Light-Matter Interactions, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark.

ACS Nano
|June 23, 2026
PubMed
Summary

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Nonlocal effects in two-dimensional (2D) heterostructures enable strong plasmon-assisted optical nonlinearity. Atomistic simulations reveal how geometry and carrier density tune harmonic generation for advanced nonlinear nanophotonics.

Area of Science:

  • Nanophotonics
  • Materials Science
  • Quantum Optics

Background:

  • Atomically thin materials exhibit unique plasmonic properties.
  • Optical nonlocality in plasmons often leads to increased losses.
  • Two-dimensional (2D) materials offer extreme optical confinement for light-matter interactions.

Purpose of the Study:

  • Investigate nonlocal effects mediating optical nonlinearity in 2D heterostructures.
  • Explore the role of symmetry and inter-ribbon coupling in harmonic generation.
  • Establish 2D heterostructures as a platform for tunable nonlinear nanophotonics.

Main Methods:

  • Atomistic simulations capturing quantum finite-size and nonlocal effects.
  • Analysis of nonlinear plasmonic response in graphene and phosphorene nanoribbon dimers.
Keywords:
high-harmonic generationnanophotonicsnonlinear opticsnonlocal electrodynamicsplasmonsquantum plasmonics

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Last Updated: Jun 25, 2026

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Published on: January 3, 2016

Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics
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  • Investigating harmonic generation in perturbative and high-harmonic regimes.

    • Main Results:

    • Nonlocal effects were shown to mediate strong plasmon-assisted optical nonlinearity.
    • Inter-ribbon plasmon hybridization was induced by tuning geometry and carrier density.
    • Impact of hybridization on inversion symmetry and even-ordered nonlinear processes (e.g., second-harmonic generation) was demonstrated.

    Conclusions:

    • Design principles for active and passive tuning of nonlinear plasmonic effects were revealed.
    • Selective enhancement of specific harmonic processes is achievable.
    • 2D heterostructures provide a versatile platform for nonlinear nanophotonics.