Abstract: The invention relates to a waveguide arrangement (10) comprising a substrate (20) and at least one strip-shaped waveguide made of a wave-guiding layer material (30). The strip waveguide extends strip-like in a longitudinal direction and can guide waves in its longitudinal direction so that the wave propagation direction corresponds to the longitudinal direction of the strip waveguide. The refractive index of the substrate (20) is greater than the refractive index of the layer material (30). In order to guide waves vertically, the strip waveguide forms a waveguide bridge (60) which is located above a recess (100) in the substrate (20) and which is at least partially spatially separated from the substrate (20) there.

Abstract: An embodiment of the present invention relates to a method of fabricating an optical device, the method comprising the steps of: depositing a photoresist layer on a carrier, said photoresist layer containing at least one optical component, determining the position of the at least one optical component inside the photoresist layer before exposing the photoresist layer to a first radiation, said first radiation being capable of transforming the photoresist layer from an unmodified state to a modified state, elaborating a device pattern based on the position of the at least one optical component, and fabricating the elaborated device pattern by locally exposing the photoresist layer to the first radiation and locally transforming the photoresist layer from the unmodified state to the modified state.

Abstract: An embodiment of the present invention relates to a method of fabricating an optical device, the method comprising the steps of: depositing a photoresist layer on a carrier, said photoresist layer containing at least one optical component, determining the position of the at least one optical component inside the photoresist layer before exposing the photoresist layer to a first radiation, said first radiation being capable of transforming the photoresist layer from an unmodified state to a modified state, elaborating a device pattern based on the position of the at least one optical component, and fabricating the elaborated device pattern by locally exposing the photoresist layer to the first radiation and locally transforming the photoresist layer from the unmodified state to the modified state.

Abstract: An embodiment of the invention relates to a single photon emission system having a proximal end, a distal end, and a single photon emitter located between the proximal end and the distal end; wherein the single photon emission system is adapted to guide optical pump radiation, which is inputted at the proximal end to optically excite the single photon emitter, along a predefined direction that runs from the proximal end to the distal end; and wherein single photons emitted by said single photon emitter, are guided along said predefined direction to the distal end.

Abstract: An embodiment of the present invention relates to a photon-to-plasmon coupler for converting photons to plasmons or vice versa, said photon-to-plasmon coupler comprising a photonic waveguide for guiding photons, a plasmonic waveguide for guiding plasmons, and two plasmonic strip waveguides, each of said two plasmonic strip waveguides being connected to said plasmonic waveguide and embracing an end section of the photonic waveguide such that each of said plasmonic strip waveguides is optically coupled to the end section of the photonic waveguide.

Abstract: An embodiment of the invention relates to a single photon emission system having a proximal end, a distal end, and a single photon emitter located between the proximal end and the distal end; wherein the single photon emission system is adapted to guide optical pump radiation, which is inputted at the proximal end to optically excite the single photon emitter, along a predefined direction that runs from the proximal end to the distal end; and wherein single photons emitted by said single photon emitter, are guided along said predefined direction to the distal end.

Abstract: A quantum-dot photon turnstile device is capable of producing a stream of regulated and directed single pairs of photons with opposite circular polarizations. This device operates by injecting pairs of electrons and holes, alternately, into a single quantum dot, where they combine to form photons. The device will efficiently and reliably produce a directed beam of such photons at regular time intervals. It will be able to operate at high frequency and at high temperature. Such a stream of regulated photon pairs will be useful in quantum cryptography, quantum computing, low-power optical communications, as a light standard, and in many other areas of technology and fundamental science.