Abstract: The invention relates to an organic light-emitting device (OLED) comprising at least: a first electrode; a second electrode; an organic light emissive layer arranged between said first electrode and said second electrode; and an organic charge transport layer arranged between said first electrode and said emissive layer, wherein i) the charge transport layer is patterned or provided with a periodic surface structure on a surface of the charge transport layer facing the emissive layer, and/or ii) an alignment layer which allows for charge transport to the emissive layer is provided between said charge transport layer and said emissive layer, which alignment layer promotes alignment of the optical dipoles of molecules of said light emissive layer towards a common preferred direction of the molecular axes. The use of the patterned or structured charge transport layer and/or the alignment layer provides improved light out coupling from the OLED layer stack, i.e. increased external quantum efficiency.

Abstract: A method of transferring a flexible layer to a substrate makes use of a partial bulge in the flexible layer, which does not make contact with the substrate. The partial bulge advances to the location of an alignment marker on the substrate. When alignment adjustments are needed, they are made with the partial bulge in place so that more reproducible positioning is possible when fully advancing the flexible layer against the substrate.

Abstract: Disclosed is a method and apparatus for contacting a relief stamping surface of a flexible stamp with a receiving surface of a substrate. The method and apparatus can be used in an imprinting method. During the method and with the apparatus, creation or breaking of contact near a contact front (border) of a preformed contact area in which a part of a locally bent relief stamping surface is in contact with the stamp receiving surface, the speed of such creation or breaking is varied for different parts of the flexible stamp such that this contact front moves over the stamp receiving surface with different speed at different locations along a contact front movement trajectory on the stamp receiving surface. This may be used to optimize throughput when using such method and apparatus.

Abstract: There is provided an illumination device (100) comprising an energy source (102) for exciting a photon emitter; a first wavelength conversion layer (104) and a second wavelength conversion layer (106). At least one of the first and second wavelength conversion layer comprises a periodic plasmonic antenna array comprising a plurality of individual antenna elements (108). The wavelength converting medium in the wavelength conversion layer in which the antenna array is arranged comprises photon emitters arranged in close proximity of the plasmonic antenna array such that at least a portion of photons emitted from the wavelength conversion layer are emitted by a coupled system comprising the photon emitter and the plasmonic antenna array.

Abstract: There is provided an illumination device comprising: a wavelength converting layer comprising a photon emitting donor configured to absorb energy to reach an excited state, and a photon emitting acceptor; an energy source configured to provide energy to the donor such that the donor reach the excited state; wherein the donor and the acceptor are selected and arranged at a distance from each other such that non-radiative transfer of excitation energy from the donor to the acceptor occur, and wherein the acceptor is configured to emit a photon at a second wavelength after the transfer of energy; the illumination device further comprising a periodic plasmonic antenna array, arranged on the substrate and embedded within the wavelength converting layer, and comprising a plurality of individual antenna elements arranged in an antenna array plane, the plasmonic antenna array being configured to support a first lattice resonance at the second wavelength, arising from coupling of localized surface plasmon resonances i

Abstract: There is provided an illumination device (100) comprising: a substrate (104); an optically transmissive first layer (106) arranged on the substrate; a photon emitting layer (108), arranged on the optically transmissive first layer and comprising a photon emitting material configured to receive energy from an energy source and to emit light having a predetermined wavelength; a periodic plasmonic antenna array, arranged on the substrate and embedded within the first layer, and comprising a plurality of individual antenna elements (114) arranged in an antenna array plane, the plasmonic antenna array being configured to support a first lattice resonance at the predetermined wavelength, arising from coupling of localized surface plasmon resonances in the individual antenna elements to photonic modes supported by the system comprising the plasmonic antenna array and the photon emitting layer, wherein the plasmonic antenna array is configured to comprise plasmon resonance modes such that light emitted from the plasm

Abstract: Embodiments of the invention include a semiconductor light emitting device for emitting a first light at a first wavelength and a wavelength conversion medium arranged to convert at least part of the first light into a second light at a second wavelength. The wavelength conversion medium is disposed between a periodic antenna array and the semiconductor light emitting device. The periodic antenna array includes a plurality of antennas. The periodic antenna array supports surface lattice resonances arising from diffractive coupling of localized surface plasmon resonances in at least one of the antennas.

Abstract: The present invention discloses a method for manufacturing a solid state light emitting device having a plurality of light-sources, the method comprising the steps of: providing a substrate having a growth surface; providing a mask layer on the growth surface, the mask layer having a plurality of openings through which the growth surface is exposed, wherein a largest lateral dimension of each of said openings is less than 0.

Abstract: The invention provides a method and apparatus for laminating a sheet to a substrate in a stress free and distortion-less manner. The method comprises providing the sheet and substrate such that an attractive force between them exists that is capable of bringing the sheet and surface together at least when their distance is shorter than a critical distance. The method creates these conditions by locally making an initial contact between the sheet and substrate such that at a contact front, being the boundary between areas where the substrate and sheet are in contact and those where they are not in contact, these conditions exist. In a further step the sheet and substrate are allowed to gradually make contact such that the contact front advances along either of the substrate or sheet surface therewith increasing the contacting area between the substrate and the sheet.

Abstract: The invention relates to a method for forming a relief layer employing a stamp having a stamping surface including a template relief pattern. A solution comprising a siliconoxide compound is sandwiched between a substrate surface and the stamp surface and dried while sandwiched. After removal of the template relief pattern the relief layer obtained has a high inorganic mass content making it robust and directly usable for a number of applications such as semiconductor, optical or micromechanical.

Abstract: Embodiments of the invention include a semiconductor light emitting device for emitting a first light at a first wavelength and a wavelength conversion medium arranged to convert at least part of the first light into a second light at a second wavelength. The wavelength conversion medium is disposed between a periodic antenna array and the semiconductor light emitting device. The periodic antenna array includes a plurality of antennas. The periodic antenna array supports surface lattice resonances arising from diffractive coupling of localized surface plasmon resonances in at least one of the antennas.

Abstract: There is provided an illumination device (100) comprising an energy source (102) for exciting a photon emitter; a first wavelength conversion layer (104) and a second wavelength conversion layer (106). At least one of the first and second wavelength conversion layer comprises a periodic plasmonic antenna array comprising a plurality of individual antenna elements (108). The wavelength converting medium in the wavelength conversion layer in which the antenna array is arranged comprises photon emitters arranged in close proximity of the plasmonic antenna array such that at least a portion of photons emitted from the wavelength conversion layer are emitted by a coupled system comprising the photon emitter and the plasmonic antenna array.

Abstract: There is provided an illumination device (100, 150, 200, 300) comprising: a periodic plasmonic antenna array (114), comprising a plurality of individual antenna elements (106) arranged in an antenna array plane, the plasmonic antenna array being configured to support surface lattice resonances at a first wavelength, arising from diffractive coupling of localized surface plasmon resonances in the individual antenna elements; a photon emitter (152) configured to emit photons at the first wavelength, the photon emitter being arranged in close proximity of the plasmonic antenna array such that at least a portion of the emitted photons are emitted by a coupled system comprising said photon emitter and said plasmonic antenna array, wherein the plasmonic antenna array is configured to comprise plasmon resonance modes being out-of plane asymmetric, such that light emitted from the plasmonic antenna array has an anisotropic angle distribution.

Abstract: A method of manufacturing a patterned stamp (100) for patterning a contoured surface (10) is disclosed. The method comprises providing a pliable stamp layer (120) carrying a pattern of features (122), forcing the pliable stamp layer onto the contoured surface with said pattern of features facing the contoured surface; applying a fluid support layer (130) over the pliable stamp layer on the contoured surface; solidifying the support layer (140) to form the patterned stamp; and removing the patterned stamp from the contoured surface. A corresponding patterned stamp, imprinting method and imprinted article are also disclosed.

Abstract: A light emitting device (1) comprising a light source (2) adapted for, in operation, emitting light (13) with a first spectral distribution, a first light guide (3) comprising a first light input surface (31) and a first light exit surface (32) arranged opposite to one another, and further comprising an end surface (35) extending perpendicular with respect to the first light input surface (31), and a second light guide (4) comprising a second light input surface (41) and a second light exit surface (42) extending perpendicular with respect to one another.

Abstract: The invention relates to a method for forming a relief layer (216) employing a stamp (206) having a stamping surface (208) including a template relief pattern. A solution comprising a siliconoxide compound (200) is sandwiched between a substrate surface (202) and the stamp surface (208) and dried while sandwiched. After removal of the template relief pattern the relief layer obtained has a high inorganic mass content making it robust and directly usable for a number of applications such as semiconductor, optical or micromechanical.

Abstract: The invention relates to an organic light-emitting device (OLED) comprising at least: a first electrode; a second electrode; an organic light emissive layer arranged between said first electrode and said second electrode; and an organic charge transport layer arranged between said first electrode and said emissive layer, wherein i) the charge transport layer is patterned or provided with a periodic surface structure on a surface of the charge transport layer facing the emissive layer, and/or ii) an alignment layer which allows for charge transport to the emissive layer is provided between said charge transport layer and said emissive layer, which alignment layer promotes alignment of the optical dipoles of molecules of said light emissive layer towards a common preferred direction of the molecular axes. The use of the patterned or structured charge transport layer and/or the alignment layer provides improved light out coupling from the OLED layer stack, i.e. increased external quantum efficiency.

Abstract: A light source (104) arranged on a substrate (100) and having a light exit surface, a wavelength converter (106) configured to convert light from a first wavelength to a second wavelength, the wavelength converter (106) having a light exit surface (110) and a light entrance surface (114) and an optical coupling element (112), arranged between and in contact with the light exit surface of the light source (104) and the light entrance surface (114) of the wavelength converter (106), and configured to couple light from the light source (104) to the wavelength converter (106), wherein at least a major portion of the surface of the wavelength converter (106), other than the light exit surface (110) and the light entrance surface (114), has a surface roughness, RA, less than 100 nm.

Abstract: Proposed is an illumination device (100), comprising a light source (110) such as an LED or a laser diode, a wavelength conversion medium (120) such as a phosphor, and a periodic antenna array (300) made of a highly polarisable material such as a metal. The light source emits primary wavelength light that at least partially is converted in secondary wavelength light by the wavelength conversion medium. The periodic antenna array is positioned in close proximity to the wavelength conversion medium and functions to enhance the efficiency of the absorption and/or emission processes in the wavelength conversion medium through the coupling of the incident primary wavelength light or the emitted secondary light to surface lattice resonances that arise from the diffractive coupling of localized surface plasmon polaritons in the individual antennas of the array.

Abstract: The invention relates to an organic light-emitting device (OLED) comprising at least: a first electrode (102); a second electrode (105); an organic light emissive layer (104) arranged between said first electrode and said second electrode; and an organic charge transport layer (103) arranged between said first electrode and said emissive layer, wherein i) the charge transport layer is patterned or provided with a periodic surface structure on a surface of the charge transport layer facing the emissive layer, and/or ii) an alignment layer (406) which allows for charge transport to the emissive layer is provided between said charge transport layer and said emissive layer, which alignment layer promotes alignment of the optical dipoles of molecules of said light emissive layer towards a common preferred direction of the molecular axes. The use of the patterned or structured charge transport layer and/or the alignment layer provides improved light out coupling from the OLED layer stack, i.e.