SOLID STATE ILLUMINATION DEVICE BASED ON NON-RADIATIVE ENERGY TRANSFER

摘要

a wavelength converting layer comprising a photon emission donor and a photon emission acceptor configured to absorb energy to reach an excited state; An illumination device is provided comprising an energy source configured to provide energy to a donor to cause the donor to reach an excited state, wherein the donor and acceptor are selected and arranged apart from each other so that non-radiative transfer of excitation energy from the donor to the acceptor occurs. and the acceptor is configured to emit a photon of a second wavelength after the transfer of energy; The lighting device further comprises a periodic plasmonic antenna array arranged on the substrate, embedded in the wavelength converting layer, and comprising a plurality of individual antenna elements arranged in a plane of the antenna array, the plasmonic antenna array being localized at the individual antenna elements. configured to support a first grating resonance at a second wavelength resulting from a combination of phosphorus surface plasmon resonance with a photon mode supported by a system comprising a plasmonic antenna array and a wavelength converting layer, wherein the plasmonic antenna array It is configured to include a plasmon resonance mode so that the emitted light has an anisotropic angular distribution.