Abstract: The present invention relates to a composition for producing a polymer, comprising: a) from 20 to 60% by weight, based on the entire composition, of at least one monomer; and b) from 30 to 60% by weight, based on the entire composition, of at least one branched pre-polymer, wherein the composition is liquid at room temperature and under normal pressure; use of the composition, a method for producing a polymer using the composition, as well as an electrically dimmable glazing that encloses the polymer.

Abstract: An optical arrangement for fluorescence microscopy applications. Electromagnetic radiation from a radiation source is directed onto a biological sample in the form of a light sheet. One of more fluorophore(s) is contained in the sample. The radiation photoactivates the fluorophore(s) by exciting them from a state which they cannot be exited to fluoresce to a state which they can be exited to fluoresce by illuminating with electromagnetic radiation of a particular wavelength, and subsequently photodeactivating them. Multiphoton beams of nonclassical light are directed onto a first optical system the beam(s) are directed onto a sample of the light sheet. Fluorescent radiation of fluorophores, can be excited within the light sheet by the plurality of multiphoton beams occurring simultaneously on/in the sample. The fluorescence radiation occurs by means of a second optical system on a detection system which measures in a spatially resolving manner.

Abstract: In the optical arrangement for fluorescent microscopic applications, one or more multiphoton beams, but at least one or two photon pair beams, from a source of non-classical light is/are directed at a first optical system, consisting of an arrangement of at least one lens or one photon-reflecting element or another beam-forming element or a combination thereof. The first optical system (3) is designed to shape the non-classical light into a light sheet (4) or a light sheet-like shape and thence to direct it at a specimen (5), so that fluorescent radiation is excited by means of multiphoton absorption using the multiple multiphoton beams that are simultaneously incident on/in the specimen. Fluorescent radiation (6) obtained by excitation is incident by means of a second optical system (7) on a detection system (8) that is designed for the spatially resolved capture of fluorescent radiation.

Abstract: The invention relates to a method for producing an optical component (1) by means of laser radiation. The object of the invention is that of providing a method that is improved compared with the prior art, which method allows for the correction of deviations of the optical functionality of the component from specified target parameters. For this purpose, the method according to the invention comprises the following method steps: generating a structure in the material of the component (1) which gives the component (1) an optical functionality, and modifying the refractive index in the material of the component (1) by means of laser beams in a pre- and/or post-processing step, i.e. before or after the generation of the structure, in order to correct deviations of the optical functionality of the component (1) from specified target parameters.

Abstract: The invention relates to an apparatus for generating laser pulses. It is an object of the invention to provide a method for generating synchronized laser pulse trains at variable wavelengths (e.g., for coherent Raman spectroscopy/microscopy), wherein the switching time for switching between different wavelengths should be in the sub-?s range. For this purpose the apparatus according to the invention comprises a pump laser (1), which emits pulsed laser radiation at a specified wavelength, an FDML laser (3), which emits continuous wave laser radiation at a cyclically variable wavelength, and a nonlinear conversion medium (4), in which the pulsed laser radiation of the pump laser (1) and the continuous wave laser radiation of the FDML laser (3) are superposed.

Abstract: A method and a device for producing an optical component having at least three monolithically arranged optical functional surfaces and an optical component are disclosed.

Abstract: The invention relates to a dialysis solution having at least one osmotic agent, with the osmotic agent being a polysaccharide modified by 2-sulfoethyl groups.

Abstract: The invention relates to a device (1) for generating laser pulses, comprising a pump laser (1), which emits laser pulses at a pump wavelength (12) with a repetition frequency, wherein the pulse duration of the laser pulses is 0.5-100 ps, and an optical parametric oscillator (3) that converts the laser pulses of the pump laser (1) at least partially to laser pulses at a signal wavelength (10) and at an idler wavelength (11), which differs from the former, wherein the optical parametric oscillator (3) has an optical resonator (20), comprising a non-linear wavelength converter (22), which converts the laser pulses of the pump laser (1) to laser pulses at the signal wavelength (10) and at the idler wavelength (11), and an output coupling element (24), which couples at least some of the radiation out of the optical resonator (20).

Abstract: The invention relates to an optical arrangement having a division element which divides an input beam consisting of a sequence of temporally equidistant light pulses into two spatially separate partial beams, at least one optical element through which at least one of the partial beams propagates, and at least one combination element which spatially superimposes the partial beams in an output beam. It is the object of the present invention to show a method for increasing the pulse energy of light pulses which is improved in comparison with the prior art. The invention solves this problem by virtue of the fact that the combination element superimposes a number of the temporally successive light pulses in a single light pulse in the output beam. The invention also relates to a method for increasing the pulse energy of light pulses.

Abstract: A method for producing an aluminum layer is provided. The method includes depositing a metallic seed layer on a substrate, the seed layer having a thickness of not more than 5 nm, and also includes applying the aluminum layer to the seed layer, wherein the aluminum layer has a thickness of more than 30 nm. Further, an optical element, which can be a mirror layer, is provided including the metallic seed layer and the aluminum layer.

Abstract: The invention relates to a device for generating a sequence of laser pulses consisting of pulse bursts. The object of the invention is to provide a possibility of generating laser pulses for material processing in the burst mode at a high quality based on the principle of beam combination.

Abstract: The invention concerns a method and an apparatus for processing an object (1) by means of interfering laser beams. It is the task of the invention to provide for an improved compensation of the aberrations accumulated over the beam path in such processes/apparatuses, since these are a substantial disturbing factor with respect to the precision in structuring the material. Furthermore, the influence of the period course, i.e. the spatial modulation of the period of the modification produced in the material of the object (1), shall be improved. The invention proposes that laser radiation is generated as a collimated laser beam (3). The intensity distribution and/or the phase progression is influenced over the cross-section of the laser beam (3) to correct aberrations. The laser beam (3) is divided into two partial beams (6, 7). Finally, the partial beams (6, 7) are deflected and focused so that the partial beams (6, 7) overlap in a processing zone (10) in the material of the object (1).

Abstract: The invention relates to an arrangement for producing a Bessel beam (5), comprising a beam-forming element (2), which transforms a beam (1) incident as a plane electromagnetic wave into a Bessel beam (5). According to the invention, the beam-forming element (2) comprises at least one annular lens (3, 3?) and a Fourier optical unit, e.g. in the form of a Fourier lens (4).

Abstract: Exemplary method, computer-accessible medium and system can be provided for determining the presence or absence of a local and/or global property of a biological tissue sample. Thus, it is possible to obtain at least one image of the sample, search the image(s) for a presence of at least one particular feature that is contained in a pre-defined set of features, and assign, to the particular feature(s). It is possible to compute, with a computer processor, at least one discriminant value that is a function of the pronunciation index that is weighted with a particular weight. The weight of each pronunciation index is a measure for a relevance of the corresponding feature with respect to the property. It is possible to determine whether the property is present in at least one part of the biological tissue sample depending on whether the discriminant value exceeds a pre-defined threshold and/or and optimized threshold.

Abstract: A contamination-repellent mirror and a method for producing the same. In an embodiment a contamination-repellent mirror includes a mirror layer disposed on a substrate, wherein the mirror layer has a reflection maximum in a wavelength range between 1 nm and 50 nm, a nanorough layer arranged on the mirror layer, wherein the nanorough layer has an rms roughness between 1 nm and 50 nm, and wherein a hygrophobic cover layer is arranged on the nanorough layer or the nanorough layer comprises a hygrophobic material.

Abstract: The invention relates to a method for machining a transparent workpiece (4) by generating non-linear absorption of laser radiation in a laser beam focus located in a volume of the workpiece (4). The object of the invention is that of providing a method of improved precision and quality, and a corresponding device, for laser machining of workpieces. In particular, it is also intended for it to be possible for workpieces made of composite materials or of other special materials, such as filter glass, to be machined at an improved level of quality. For this purpose, the method according to the invention comprises the following steps: spectroscopic measurement of the linear absorption of the laser radiation in the workpiece (4), selecting a working wavelength at which the linear absorption is low, and machining the workpiece (4) by means of application of laser radiation at the working wavelength. The invention furthermore relates to a corresponding device for machining a transparent workpiece (4).

Abstract: The invention relates to a method for stably transmitting laser radiation through an optical waveguide (3), wherein two or more modes of the laser radiation propagating in the optical waveguide (3) interfere and form a mode interference pattern in the optical waveguide, as a result of which a thermally induced refractive index grating is produced in the optical waveguide (3). It is an object of the invention to demonstrate an effective approach for stabilizing the output signal of the optical waveguide (3) in a fiber-based laser/amplifier combination at high output powers, i.e. for avoiding mode instability. The invention achieves this object by virtue of the fact that a relative spatial phase shift between the mode interference pattern and the thermally induced refractive index grating is set in the direction of propagation of the laser radiation.

Abstract: A method for producing a reflector element and a reflector element are disclosed. In an embodiment the method includes depositing a layer sequence on a substrate, wherein the layer sequence includes at least one mirror layer and at least one reactive multilayer system and igniting the reactive multilayer system in order to activate heat input in the layer sequence.

Abstract: The present invention relates to compounds of formula (III) or to compounds of formula (IV) wherein R1, R2, R3 and R4 are as defined in the claims, and their use in therapeutic treatments of 5-lipoxygenase related diseases such as chronic airway inflammatory or dermatological disorders.

Abstract: A method of propagating a laser signal through an optical waveguide and a waveguide laser system provide a novel way of stabilizing the beam emitted by a fiber laser system above the mode instability threshold wherein the beat length of two or more interfering transverse modes of the laser signal in the optical waveguide is modulated in time.