Light emitting device, method of fabricating same and method of controlling light emission

A method of controlling light emission comprising:

• providing a plasmonic structure comprising a plurality of periodicities, the plurality of periodicities capable of having a corresponding plurality of localized surface plasmon resonances;
• providing a broadband light emitting layer adjacent to the plasmonic structure to enable exciton-plasmon coupling between the broadband light emitting layer and the plasmonic structure, the broadband light emitting layer comprising an emission spectrum substantially overlapping wavelengths of the localized surface plasmon resonances, wherein providing the broadband light emitting layer comprises providing a mixture of a plurality of narrowband emitters, each narrowband emitter having a respective spectral peak;
• and
• controlling the localized surface plasmon resonances of the plasmonic structure to modify relative intensities of the spectral peaks of the narrowband emitters to tune a color of light emitted by the broadband light emitting layer;
• and
• controlling, by the plasmonic structure, a polarization of the light emitted by the broadband light emitting layer.

A method fabricating a light emitting device, the method comprising:

• forming a plasmonic structure having a plurality of periodicities corresponding to a plurality of localized surface plasmon resonances;
• forming a broadband light emitting layer comprising an emission spectrum substantially overlapping wavelengths of the localized surface plasmon resonances, wherein forming the broadband light emitting layer comprises mixing a plurality of narrowband emitters, each narrowband emitter having a respective spectral peak;
• and
• disposing a spacer layer between the plasmonic structure and the broadband emitting layer such that exciton-plasmon coupling between the broadband light emitting layer and the plasmonic structure is enabled,
• wherein the plasmonic structure is formed such that the plasmonic structure controls a polarization of light emitted by the broadband light emitting layer and the localized surface plasmon resonances of the plasmonic structure modify relative intensities of the spectral peaks of the narrowband emitters to tune a color of light emitted by the broadband light emitting layer.