Abstract: A glass, a glass article made of the glass as well as uses and production methods are disclosed. The glass constituents are selected such that excellent scratch resistance and impact strength are provided. The glass has a composition characterized by the following constituent phases: 15-60 mol % reedmergnerite; 20-60 mol % albite; 0-20 mol % nepheline; 0-20 mol % orthoclase; 0-20 mol % parakeldyshite; 0-20 mol % narsarsukite; 0.1-30 mol % disodium zinc silicate; 0-4 mol % diboron trioxide; 0-20 mol % cordierite; and 0-20 mol % danburite. A quotient of a coefficient of thermal expansion of the glass multiplied by 1000 (in ppm/K) and the product of a pH value and a removal rate in alkaline environment (in mg/(dm23h)) according to ISO 695 is at least 8 and the removal rate in alkaline environment according to ISO 695 is at most 115 mg/(dm23h).

Abstract: The present invention relates to glasses, such as e.g. thin or thinnest glasses, but also to glasses for the production of tubular glass, carpules and syringes as well as other pharmaceutical vessels. The glasses are characterized by a high chemical prestressability (tem-perability) with very well alkali, hydrolytic and/or acid resistance as well as an advantageous coefficient of thermal expansion. The glass has a composition characterized by the following constituent phases: 0-60 mol % reedmergnerite; 20-60 mol % albite; 0-30 mol % orthoclase; 0-20 mol % natrosilite; 0-20 mol % sodium metasilicate; 0-20 mol % parakeldyshite; 0-20 mol % narsarsukite; 0-20 mol % disodium zinc silicate; 0-21 mol % cordierite; and 0-20 mol % danburite. A quotient of a coefficient of thermal expansion of the glass multiplied by 1000 (in ppm/K) and the product of a pH value and a removal rate in alkaline environment (in mg/(dm23h)) according to ISO 695 is at least 9.0.

Abstract: A glass is described, a glass article made of the glass as well as uses and production methods. The glass constituents are selected such that it results in excellent chemical stability and ion ex-changeability. The glass has a composition characterized by the following glass constituent phases: 0-35 mol % reedmergnerite; 10-60 mol % albite; 3.5-25 mol % orthoclase; 0-40 mol % natrosilite; 0-20 mol % parakeldyshite; 0-20 mol % narsarsukite; 0-35 mol % disodium zinc silicate; 0-35 mol % silicon dioxide; 0-30 mol % cordierite; and 0-20 mol % danburite. A quotient of a coefficient of thermal expansion of the glass multiplied by 1000 (in ppm/K) and the product of a pH value and a removal rate in alkaline environment (in mg/(dm23h)) according to ISO 695 is at least 9.25.

Abstract: The invention relates to a photonic crystal fiber, in particular single-mode fiber, for the transmission of electromagnetic radiation in the IR wavelength range of >1 ?m, in particular in the wavelength range from 1 ?m to 20 ?m, preferably from 9 ?m to 12 ?m, having a light-conducting hollow core, in particular a hollow core having a diameter D, and a plurality of hollow bodies, in particular hollow tubes composed of a chalcogenide glass, arranged around the light-conducting hollow core. The hollow bodies (10, 20) are arranged in such a way that the diameter D of the light-conducting hollow core is greater than the shortest wavelength to be transmitted, preferably at least 20 ?m, preferably at least 50 ?m, particularly preferably at least 100 ?m, preferably in the range from 100 ?m to 500 ?m, in particular in the range from 150 ?m to 350 ?m, and the damping for the transmission of electromagnetic radiation is <2 dB/m, in particular <1 dB/m, preferably <0.3 dB/m, in particular <0.1 dB/m.

Abstract: The invention relates to a photonic crystal fiber, in particular single-mode fiber, for the transmission of electromagnetic radiation in the IR wavelength range of >1 ?m, in particular in the wavelength range from 1 ?m to 20 ?m, preferably from 9 ?m to 12 ?m, having a light-conducting hollow core, in particular a hollow core having a diameter D, and a plurality of hollow bodies, in particular hollow tubes composed of a chalcogenide glass, arranged around the light-conducting hollow core. The hollow bodies (10, 20) are arranged in such a way that the diameter D of the light-conducting hollow core is greater than the shortest wavelength to be transmitted, preferably at least 20 ?m, preferably at least 50 ?m, particularly preferably at least 100 ?m, preferably in the range from 100 ?m to 500 ?m, in particular in the range from 150 ?m to 350 ?m, and the damping for the transmission of electromagnetic radiation is <2 dB/m, in particular <1 dB/m, preferably <0.3 dB/m, in particular <0.1 dB/m.

Abstract: The thin-film solar cell includes at least one Na2O-containing multicomponent substrate glass. The substrate glass contains less than 1% by weight of B2O3, less than 1% by weight of BaO and a total of less than 3% by weight of CaO+SrO+ZnO, the molar ratio of the substrate glass components, (Na2O+K2O)/(MgO+CaO+SrO+BaO), is greater than 0.95, the molar ratio of the substrate glass components SiO2/Al2O3 is less than 7 and the substrate glass has a glass transition temperature Tg of greater than 550° C., in particular greater than 600° C. The thin-film solar cells made with this substrate glass have improved efficiencies in comparison to thin-film solar cells of the prior art.

Abstract: The thin-film solar cell includes at least one Na2O-containing multicomponent substrate glass, which is not phase demixed and has a content of ?-OH of from 25 to 89 mmol/l. The process for making a thin-film solar cell includes the following steps: a) providing an Na2O-containing multicomponent substrate glass, which has a content of ?-OH of from 25 to 80 mmol/l and is not phase demixed; b) applying a metal layer to the substrate glass, which forms an electrical back contact of the thin-film solar cell; c) applying an intrinsically p-conducting polycrystalline layer of a compound semiconductor material, in particular a CIGS compound semiconductor material, which includes at least one high-temperature step at a temperature of >550° C.; and d) applying a p/n junction.

Abstract: The invention relates to an arrangement for generating a broadband spectrum which can be used in particular as a light source for short coherence interferometry. The arrangement comprises a laser, in particular a laser diode, for generating a short light pulse of wavelength ?p and a microstructured optical fiber (1) with a high nonlinearity, which has a zero dispersion of the group velocity in the vicinity of the wavelength ?p and an anomalous dispersion, as well as means for introducing the light pulse into the microstructured optical fiber.

Abstract: The invention relates to an arrangement for generating a broadband spectrum that can be used in particular as a light source for short coherence interferometry and confocal microscopy as well as endoscopic short coherence interferometry and endoscopic confocal microscopy. The arrangement comprises a laser, in particular a laser diode, for generating a short light pulse of wavelength ?P and a microstructured optical fiber (1) of high nonlinearity, that has a null dispersion of the group velocity in the vicinity of the wavelength ?P and an anomalous dispersion, as well as means for coupling the light pulse into the microstructured optical fiber.

Abstract: The invention relates to a color effect layer system, including: a carrier substrate selected from glass or glass-ceramics, at least one layer of spheres, particularly preferred at least 50 layers, more preferred 50 to 100 layers, including filled or not filled cavities/honeycombs, in the form of a porous material composite of a crystal-like superstructure or an inverse crystal-like superstructure having a three-dimensional periodic or substantially periodic configuration in the order of magnitude of the wavelength of visible light, wherein the sphere diameters and optionally the cavity/honeycomb diameters have a very strict distribution. In addition to the excellent optical properties, the coating systems also have sufficient mechanical stability.

Abstract: The invention relates to an arrangement for generating a broadband spectrum which can bemused in particular as a light source for short coherence interferometry. The arrangement comprises a laser, in particular a laser diode, for generating a short light pulse of wavelength 80 p and a microstructured optical fiber (1) with a high nonlinearity, which has a zero dispersion of the group velocity in the vicinity of the wavelength ?p and an anomalous dispersion, as well as means for introducing the light pulse into the microstructured optical fiber.