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Peer-reviewedCC BY-NC-ND 4.0Plasmonics

Near-Field Coupling in Plasmonic Nanoarrays: Tailoring Radiative and Non-Radiative Losses Through Gap Engineering

  • Benedict S Morris
  • Bruno Palpant
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Abstract

We demonstrate, through finite-difference time-domain (FDTD) simulations, that near-field coupling in ordered 2D nanoarrays of gold nanoparticles can mitigate thermal losses. By comparing the electric field intensities inside the gold nanorods with those in the interparticle gaps and with the optical far-field spectra, we show that absorption is reduced for small gaps due to charge screening, despite high near-field intensities in the gaps. The data here corresponds to the electric-field-intensity profile along the long axis of the nanorod for longitudinal polarisation, and to the far-field optical data for different nanorod heights and gap values. More information can be found in the article to be published under the same title.

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Cite

BibTeXRIS
BibTeX
@article{morris2026nearfield,
  title = {{Near-Field Coupling in Plasmonic Nanoarrays: Tailoring Radiative and Non-Radiative Losses Through Gap Engineering}},
  author = {Benedict S Morris and Bruno Palpant},
  journal = {Plasmonics},
  year = {2026},
  month = sep,
  doi = {10.1007/s11468-026-03455-4},
  url = {https://hal.science/hal-05798087v1},
  note = {CC BY-NC-ND 4.0},
}
RIS
TY  - JOUR
TI  - Near-Field Coupling in Plasmonic Nanoarrays: Tailoring Radiative and Non-Radiative Losses Through Gap Engineering
AU  - Benedict S Morris
AU  - Bruno Palpant
PY  - 2026
DA  - 2026/09/07
JO  - Plasmonics
DO  - 10.1007/s11468-026-03455-4
UR  - https://hal.science/hal-05798087v1
AB  - We demonstrate, through finite-difference time-domain (FDTD) simulations, that near-field coupling in ordered 2D nanoarrays of gold nanoparticles can mitigate thermal losses. By comparing the electric field intensities inside the gold nanorods with those in the interparticle gaps and with the optical far-field spectra, we show that absorption is reduced for small gaps due to charge screening, despite high near-field intensities in the gaps. The data here corresponds to the electric-field-intensity profile along the long axis of the nanorod for longitudinal polarisation, and to the far-field optical data for different nanorod heights and gap values. More information can be found in the article to be published under the same title.
SN  - 1557-1955
SN  - 1557-1963
ER  -