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 invention provides a lighting device having a photo-excited phosphor layer, with two monochromatic light beams (1, 1a, 1b) that counter propagate within the phosphor layer (2) thereby providing a destructive interference of the excitation light outside the phosphor layer (2). The excitation light source has an output wavelength greater than a peak absorption wavelength of the phosphor. This enables more efficient conversion of light and reduced heating.

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: Process for obtaining fluoride-doped citrate-coated amorphous calcium phosphate nanoparticles. This material has applications in biomedicine due to its biodegradability and bioactivity; it also promotes cell adhesion and osteogeneration. In dentistry, it may be used in toothpastes, mouthwashes, chewing gums, gels and fluoride varnishes as a remineralising agent of dentine and enamel. It is based on two solutions formed by calcium chloride and sodium citrate on the one hand, and by sodium monohydrogenophosphate and sodium carbonate with a fluoride compound on the other, which are mixed at room temperature. The process is eco-efficient and eco-friendly, as it does not leave any acid residue; it consists of a single stage and it is the first time that an amorphous calcium phosphate coated with citrate and doped with fluoride, which enhances its remineralising action, is obtained.

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) 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 invention provides a lighting device having a photo-excited phosphor layer, with two monochromatic light beams (1, 1a, 1b) that counter propagate within the phosphor layer (2) thereby providing a destructive interference of the excitation light outside the phosphor layer (2). The excitation light source has an output wavelength greater than a peak absorption wavelength of the phosphor. This enables more efficient conversion of light and reduced heating.

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: 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: 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: A THz frequency range antenna is provided which comprises: a semiconductor film (3) having a surface adapted to exhibit surface plasmons in the THz frequency range. The surface of the semiconductor film (3) is structured with an antenna structure (4) arranged to support localized surface plasmon resonances in the THz frequency range.

Abstract: A device for analyzing a sample using radiation in the terahertz frequency range is provided. The device comprises a transmitter (3) comprising a THz signal generator (5, 6, 7; 51) for generating an electromagnetic THz signal, the THz signal generator comprising a nonlinear transmission line (7; 52). The device further comprises a surface plasmon polariton generating unit (8) adapted to convert the THz signal into a surface plasmon polariton. The transmitter (3) and the surface plamon polariton generating unit (8) are either integrated on one common substrate or on two separate substrates.

Abstract: A luminescent solar concentrator, comprising: at least one luminescent device (12) for converting incident light (16) in at least one operating mode, wherein the luminescent device (12) has at least one nanostructured layer (34) and at least one luminescent member (14), and wherein the nanostructured layer (34) is in close proximity to the luminescent member (14); and at least one light guide (18) that is designed to guide light in a direction by total internal reflection.

Abstract: The present disclosure relates to a gas sensor including a first layer and a second layer superimposed on each other along an interface between the two layers. The first layer includes an array of nanoparticles along the interface, the nanoparticles provided so as to allow, upon illumination with electromagnetic radiation, long range diffractive coupling of surface plasmon resonances resulting in a surface lattice resonance condition. The second layer includes a material that, when exposed to at least one predetermined gas, detectably affects the surface lattice resonance condition. The material of the second layer preferably has a porosity of at least 10%.

Abstract: The invention relates to an assembly for detecting the presence of a target based on a detection of a resonance associated to surface polaritons, such as long-range surface exciton polaritons (LRSEP). The invention relates to an assembly to be used in connection with a bio-sensor. The assembly comprising a carrier substrate (1) and a sensor layer (2) positioned on the carrier substrate. The sensor layer is of a material having a complex permittivity with an imaginary part being greater than or similar to the real part.

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: In order to guide electromagnetic waves in the terahertz range over long distances of several meters with low bending losses and large bandwidth, a device, a system and a method are provided such that electromagnetic waves in the terahertz range can be coupled into a wire having a core structure and at least one confinement structure, wherein the confinement structure extends continuously along a length of the wire.