Strong coupling between two opticallyexcited systems leads to distinct features in their coupled dynamics that can dramatically alter observable, including their absorption and scattering cross sections. In particular, strong coupling permits the exchange of excitation energy between the systems on timescales that are faster than dissipative timescales. We see evidence of these dynamics in both the CNP600-Au and CNP600-Au systems through their dipole trajectories, which show much slower decay than compared to the lone plasmonic nanoparticles (see Figure and). We also see a periodic recurrence, or beating, of amplitude of the coupled dipole moments, that is characteristic of the strong coupling limit. We also observe significant changes in the scattering spectrum, including splitting of the plasmon resonances (see Figures and), which are another indicator of the strong coupling limit.