By tuning the height of an enclosing photonic cavity the energy levels and properties of a dimer of dipolar meta-atoms can be manipulated. The work studies that effect theoretically and confirm an analytic model by a simulation of metallic nanospheroids in a Fabry-Pérot cavity.
T. Sturges, et al. Extreme renormalisations of dimer eigenmodes by strong light–matter coupling. New Journal of Physics, 22(10), 103001 (2020).