Surface-mode-induced Rescaling of the Dipole-dipole Interaction

A surface or structure can modify the optical properties of a nearby radiator. These effects include the modification of a molecule's radiative lifetime near a metal surface and the strikingly large effect known as surface-enhanced Raman scattering (SERS). During our attempts to understand the mechanism responsible for another dipole-surface effect—nanoparticle-enhanced photodetection—we found evidence that a nearby surface can also modify the dipole-dipole interactions taking place within a layer of radiators, producing rather dramatic results.

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