Abstract: An optoelectronic oscillator for generating an optical and/or electric pulse comb, comprising a monolithically integrated passively mode-coupled semiconductor laser and an optical feedback loop which guides a part of the optical radiation of the semiconductor laser and feeds said part back into the semiconductor laser as feedback pulses. Without the influence of the feedback pulses, the semiconductor laser would emit comb-like optical pulses, hereafter referred to as primary pulses, and in the event of an influence, emits comb-like output pulses which have been influenced by the feedback pulses, said output pulses having a lower temporal jitter or less phase noise than the primary pulses. The feedback loop is damped between 27.5 and 37.5 dB, and the time lag of the feedback loop is selected such that each feedback pulse is incident within the temporal half-value width of each subsequent primary pulse.

Abstract: The invention relates, inter alia, to a photonically integrated chip (2) having a substrate (20), a plurality of material layers arranged on a top side (21) of the substrate (20), an optical waveguide which is integrated in one or more wave-guiding material layers of the chip (2), and a grating coupler (60) which is formed in the optical waveguide and causes beam deflection of radiation guided in the waveguide in the direction out of the layer plane of the wave-guiding material layer(s) or causes beam deflection of radiation to be coupled into the waveguide in the direction into the layer plane of the wave-guiding material layer(s).

Abstract: Device comprising a high brightness broad-area edge-emitting semiconductor laser and method of making the same. The device includes an edge-emitting semiconductor laser, said laser having a multi-layered waveguide, and said waveguide comprising at least one layer with an active region that emits light under electrical injection, and at least one aperiodic layer stack.

Abstract: An ultraviolet (UV) light emitting structure, a UV light emitting device, and a method of making a UV light emitting structure or device, wherein the UV light emitting structure or device has an AlN or AlGaN injection layer with high aluminum content between the light emitting active region and the p-doped layers and wherein the injection layer has a thickness such that holes can tunnel from the p-side of the semiconductor-based ultraviolet light emitting diode structure through the injection layer in the active zone and also reducing leakage electrons out of the active zone.

Abstract: An optical sensor for detecting chemical, biochemical or biological substances includes a laser and a semiconductor chip. The sensor includes at least one photodetector and at least one high-contrast grating that are monolithically integrated in the semiconductor chip. The high-contrast grating is configured to optically couple radiation emitted by the laser into the photodetector. The coupling behavior of the high-contrast grating depends on the optical properties of external substances that are brought near to or in contact with the high-contrast grating.

Abstract: A device for electromechanically assisted roller burnishing (EMRB) may comprise: a roller burnishing tool with exactly one current-leading roller burnishing element for burnishing a workpiece, wherein the roller burnishing element represents a first electrical contact element for electrically contacting first location of the workpiece, and a second electrical contact element for electrically contacting second location of the workpiece; wherein the first and the second electrical contact elements can be positioned at a settable spatial distance to one another, so that on moving the roller burnishing element on the workpiece, a current path in the workpiece between the first and the second contact elements is always a constant length.

Abstract: A method for obtaining at least one microbial secondary metabolite or a derivative thereof, the method includes the step of heterologous expression of at least one synthetase of the secondary metabolite in at least one filamentous fungus. Also disclosed is an expression cassette, a plasmid vector including the expression cassette, an expression host, novel cyclodepsipeptides and a chimeric cyclodepsipeptide synthetase.

Abstract: An embodiment of the present invention relates to an optoelectronic device comprising an optoelectronic component, a waveguide having an optical waveguide section and an electrical conductor section, the optical waveguide section being transparent for radiation of a given wavelength or a given wavelength range and capable of guiding the radiation along the longitudinal axis of the waveguide, wherein the optical waveguide section is optically butt-coupled to an optical surface section of the optoelectronic component, and wherein the electrical conductor section is mechanically butt-coupled to an electrical contact of the optoelectronic component.

Abstract: A transport container, in particular as a component part of a rail vehicle, having a transportation space for receiving goods to be transported, which on its upper side includes at least one opening, wherein the transport container includes a grate which at least in part covers the opening.

Abstract: Method for the automatic analysis of an image of a biological sample with respect to a pathological relevance, wherein a)local features of the image are aggregated to a global feature of the image using a bag of visual word approach, b) step a) is repeated at least two times using different methods resulting in at least two bag of word feature datasets, c) computation of at least two similarity measures using the bag of word features obtained from a training image dataset and bag of word features from the image, d) the image training dataset comprising a set of visual words, classifier parameters, including kernel weights and bag of word features from the training images, e) the computation of the at least two similarity measures is subject to an adaptive computation of kernel normalization parameters and/or kernel width parameters, f) for each image one score is computed depending on the classifier parameters and kernel weights and the at least two similarity measures, the at least one score being a measure

Abstract: An embodiment of the invention relates to a method for generating short optical pulses comprising the steps of: operating a single section semiconductor laser in a nonlinear regime to emit chirped optical pulses at an output facet of the laser cavity, and compressing the chirped optical pulses outside the laser cavity using a dispersive element in order to generate the short optical pulses.

Abstract: An embodiment of the present invention relates to a radiation emitting device comprising: a radiation emitter for generating radiation; a waveguide; a lens placed between the radiation emitter and the waveguide and directing a first portion of the radiation towards the waveguide; a sleeve that comprises a reflective inner surface and is placed between the radiation emitter and the waveguide, said inner reflective surface coupling a second portion of the radiation into the waveguide; wherein the lens and the sleeve are separate components that can be positioned relative to each other during fabrication of the radiation emitting device.

Abstract: A method of making hydrosilanes having a formula R1R2R3SiH by reacting a compound having formula I: in solution using a strong Lewis acid. This way, e.g., alkenes or carbonyl compounds can be hydrosilylated in good yields using the cyclohexa-2,5-dien-1-yl-silanes of general formula I as transfer hydrosilylating agents in the presence of a strong Lewis acid as catalyst with concomitant formation of an arene solvent.

Abstract: A flow cytometer disinfection module is useful for disinfecting a sheath fluid in a flow cytometer. The module includes a flow cell and at least one UV-C and/or UV-B light source. The UV-C and/or UV-B light source is disposed about the cell and irradiates a sheath fluid passing through the cell.

Abstract: An embodiment of the present invention relates to an optoelectronic device comprising an optoelectronic component, a waveguide having an optical waveguide section and an electrical conductor section, the optical waveguide section being transparent for radiation of a given wavelength or a given wavelength range and capable of guiding the radiation along the longitudinal axis of the waveguide, wherein the optical waveguide section is optically butt-coupled to an optical surface section of the optoelectronic component, and wherein the electrical conductor section is mechanically butt-coupled to an electrical contact of the optoelectronic component.

Abstract: An embodiment of the invention relates to a method for generating short optical pulses comprising the steps of: operating a single section semiconductor laser in a nonlinear regime to emit chirped optical pulses at an output facet of the laser cavity, and compressing the chirped optical pulses outside the laser cavity using a dispersive element in order to generate the short optical pulses.

Abstract: The invention relates, inter alia, to a memory cell (10) comprising at least one binary memory area for storing bit information. According to the invention it is provided that the memory area (SB) can optionally store holes or electrons and allows a recombination of holes and electrons, the charge carrier type of the charge carriers stored in the memory area defines the bit information of the memory area, and a charge carrier injection device (PN) is present, by means of which optionally holes or electrons can be injected into the memory area (SB) and the bit information can thus be changed.

Abstract: The present invention describes a method for an in vitro detection of a first protein in a sample, comprising the steps of: a) separating the sample by means of a native separation method; b) transferring the separated sample onto a membrane; c) contacting the membrane with an aptamer which specifically binds to the first protein; and d) detecting the first protein by detecting the aptamer bound to the first protein.

Abstract: Tube-like device (100) for transferring ions generated by means of ion generation source (4) comprising a cylindrical middle portion (104) and an inlet portion (102) for introduction of the ions in at least one ion cloud into the cylindrical middle portion (104), wherein a flow direction of the ions is along a longitudinal axis (L) of the tube-like device (100), wherein the inlet portion (102) is formed tapering funnel-like towards the cylindrical middle portion (104).

Abstract: An optoelectronic oscillator for generating an optical and/or electric pulse comb, comprising a monolithically integrated passively mode-coupled semiconductor laser and an optical feedback loop which guides a part of the optical radiation of the semiconductor laser and feeds said part back into the semiconductor laser as feedback pulses. Without the influence of the feedback pulses, the semiconductor laser would emit comb-like optical pulses, hereafter referred to as primary pulses, and in the event of an influence, emits comb-like output pulses which have been influenced by the feedback pulses, said output pulses having a lower temporal jitter or less phase noise than the primary pulses. The feedback loop is damped between 27.5 and 37.5 dB, and the time lag of the feedback loop is selected such that each feedback pulse is incident within the temporal half-value width of each subsequent primary pulse.