Spontaneous decay of an excited state of an emitter coupled to parallel SWNTs placed in the vicinity of a plane interface between two dielectric materials

► Spontaneous decay of an emitter coupled to a system of carbon nanotubes is studied. ► Presence of carbon nanotubes substantially enhances emitter decay rate. ► Emitter decay rate spectra contain pronounced resonance lines. ► Resonance frequencies depend on the carbon nanotube length. ► Resonance frequencies depend on the relative permittivity of surrounding medium.