https://doi.org/10.1051/epjam/2025004
Original Article
Optimisation and precision tuning of localised surface plasmon resonance in AuFON systems
1
Grupo de Investigación Óptica Moderna (GOM)-Minciencias, Departamento de Física, Facultad de Ciencias Básicas, Universidad de Pamplona, Pamplona, Colombia
2
Centro Atómico Bariloche e Instituto Balseiro, Comisión Nacional de Energía Atómica (CNEA) - Universidad Nacional de Cuyo (UNCUYO), 8400 Bariloche, Argentina
3
Instituto de Nanociencia y Nanotecnología (INN-Bariloche), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Bariloche, Argentina
* e-mail: luisguerra@unipamplona.edu.co
Received:
11
April
2025
Accepted:
10
September
2025
Published online: 14 November 2025
Metal film on nanosphere (MFON) plasmonic systems have emerged as nanostructures with useful properties for molecular detection. This work presents the optimisation and discussion of the characterization results of Au-film on nanosphere (AuFON) systems. Through experiments and numerical simulations, the resonance energies of localised surface plasmon modes and the spatial distribution of light on the nanostructured surface were identified. The results highlight the dependence of these modes on changes in nanostructure dimensions and the optical conditions of the incident radiation, thereby optimising the amplification of optical signals for applications in molecular detection.
Key words: Plasmonic substrates / localised plasmons / optical antennas
© L.A. Guerra Hernández et al., Published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
