2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/129407We resolve the photokinetic rates enhancement of Rhodamine 6G molecules diffusing in a water-glycerol mixture within a single nanometric aperture milled in an opaque aluminium film. Combining fluorescence correlation spectroscopy and lifetime measurements, we report the relative influence of excitation, radiative and non-radiative decay in the fluorescence process, giving a detailed description of the physics behind the overall 15 fold enhancement of the average fluorescence rate per molecule. This procedure is broadly adaptable to a wide range of nanostructures.Accepted for publication in J. Phys. Chem. CQuantum Physicstext