Method of manufacturing surface textured high-efficiency radiating devices and devices obtained therefrom

A device for emitting radiation at a predetermined wavelength, said device comprising a cavity with an active layer wherein said radiation is generated by charge carrier recombination, said cavity having a radiation confinement space including confinement features for said charge carriers, said device comprising at least two edges forming in cross-section a substantially triangular shape and an angle between said edges being smaller than 45° and at least one of said edges having a transparent portion, and at least one of said edges having a substantially random diffraction grating structure.

An array of devices for emitting radiation at a predetermined wavelength, wherein each device comprises a cavity with an active layer generating radiation by charge carrier recombination, said cavity having a radiation confinement space including confinement features for said charge carriers and at least one edge having a substantially random diffraction grating structure, and wherein individual devices of said array are individually controllable.

A device for emitting radiation at a predetermined wavelength, said device having a cavity with an active layer wherein said radiation is generated by charge carrier recombination, said device including a waveguide and said device comprising at least one edge having a substantially random diffraction grating structure.

A device for emitting radiation at a predetermined wavelength, said device having a cavity with an active layer wherein said radiation is generated by charge carrier recombination, said device including a waveguide and said device comprising two edges forming in cross-section a substantially triangular shape and an angle between said edges being smaller than 45°, at least one of said edges having a transparent portion and at least one edge having a substantially random diffraction grating structure.

An array of devices wherein individual devices of said array have a cavity with an active layer wherein said radiation is generated by charge carrier recombination, said individual devices include a waveguide and comprise at least one edge having a substantially random diffraction grating structure, and wherein individual devices of said array are individually controllable.

An array of devices wherein individual devices of said array have a cavity with an active layer wherein said radiation is generated by charge carrier recombination, said individual devices include a waveguide and comprise at least one edge having a substantially random diffraction grating structure, wherein said individual devices are individually controllable by being defined with a mesa edge, and wherein grooves in between the individual devices have a substantially random diffraction grating structure.

An array of devices for emitting radiation at a predetermined wavelength, wherein each device has a cavity with an active layer wherein said radiation is generated by charge carrier recombination, a waveguide and at least one edge having a substantially random diffraction grating structure, and wherein the devices of said array are individually controllable, said array being mounted on a polymeric foil carrier having a radiation converting phosphorous layer mounted thereon, said array emitting thereby light of a different wavelength at a side where the array is mounted to said polymeric foil carrier compared to a side of the array opposite said polymeric foil carrier.

A device for emitting radiation at a predetermined wavelength, said device having a cavity with an active layer wherein said radiation is generated by charge carrier recombination, said device comprising at least one edge having a substantially random diffraction grating structure and being mounted on a transparent carrier.

A device for emitting radiation at a predetermined wavelength, said device having a cavity with an active layer wherein said radiation is generated by charge carrier recombination, said device comprising at least one edge having a substantially random diffraction grating structure and having at least one reflective edge, at least one of the electrical contacts to said device being through said reflective edge.

A device for emitting radiation at a predetermined wavelength, said device comprising at least two edges forming in cross-section a substantially triangular shape and the angle between said edges being smaller than 45° and at least one of said edges having a transparent portion.

An array of devices for emitting radiation at a predetermined wavelength, said devices comprising a cavity with an active layer wherein said radiation is generated by charge carrier recombination, and wherein individual devices of said array are individually controllable and wherein waveguides exist between the individual devices, said waveguides having a substantially random diffraction grating structure.

A device for emitting radiation at a predetermined wavelength, said device comprising a cavity with an active layer wherein said radiation is generated by charge carrier recombination, said cavity having a radiation confinement space including confinement features for said charge carriers, and said device comprising at least one edge having diffraction grating structure, wherein the diffraction grating structure has a plurality of differently spaced ridges and valleys.