Optimisation and precision tuning of localised surface plasmon resonance in AuFON systemsLuis Alfonso Guerra Hernández, Osmar Gil Salas, Jorge Enrique Rueda Parada, Alejandro Fainstein and Andrés Alejandro ReynosoEPJ Appl. Metamat., 12 (2025) 4DOI: https://doi.org/10.1051/epjam/2025004