Abstract: A method for preparing a stack of dielectric layer on a substrate. A substrate is provided and a first layer of liquid is printed onto a surface of the substrate. A first dielectric layer is formed by solidifying the first layer of liquid and a second layer of liquid is printed onto the first dielectric layer. A second dielectric layer is formed by solidifying the second layer of liquid. The liquid includes dielectric constituents and the liquid is printed such that droplets having a volume of less than one hundred nanoliters are locally deposited per square millimeter on the surface of the substrate.

Abstract: The present invention relates to a surface cover for a body which can be brought into contact with a liquid, comprising: a layer which at least partly contains gas and which is designed and arranged such that at least some sections of a layer face facing the liquid contacts the liquid; a gas-permeable layer which is arranged on the gas-containing layer on a face that faces the body and is opposite the face facing the liquid or which is integrally formed with the gas-containing layer; and a gas-supplying device which is connected to the gas-permeable layer such that gas can flow from the gas-supplying device to the gas-containing layer through the gas-permeable layer. The invention also relates to an arrangement and a use.

Abstract: A method of fabricating an imaging system as well as to a corresponding imaging system. The method includes providing a substrate; and forming, by means of a 3D-printing technique, a 3D structure on the substrate, wherein the forming of the 3D structure includes forming a stack of at least two diffractive optical elements in a single printing step.

Abstract: multi-aperture system for foveated imaging as well as to a corresponding multi-aperture system. The method comprises the steps of: providing an image sensor; and forming, by means of a 3D-printing technique, at least two imaging elements directly on the image sensor such that the imaging elements have a common focal plane located on the image sensor and each imaging element has a different focal length and field of view.

Abstract: The invention relates to a method and a device for producing at least one microstructure (5) on an axial end (1a) of an optical fiber (1). The method comprises the following steps: —providing (S10) the optical fiber (1); —wetting (S20) the axial end (1a) of the optical fiber (1) with photoresist (2); —orienting (S30) the optical fiber (1) and a writing beam of a 3D printer with respect to one another; —forming (S40) the at least one microstructure (5) by exposing the photoresist (2) to light with the aid of the 3D printer.

Abstract: The present invention relates to a method for manufacturing an optical element (100) having at least one functional region using a 3D-printer, comprising the steps: forming a three-dimensional structure (50) of the optical element (100) using a 3D-printer such that the three-dimensional structure (100) has at least one microfluidic cavity (4) for receiving a functional substance (6); and filling the at least one microfluidic cavity (4) with the functional substance (6) for forming the at least one functional region. In addition, the invention relates to a device for manufacturing an optical element (100) as well as a use of the device.

Abstract: The present invention relates to a surface cover for a body which can be brought into contact with a liquid, comprising: a layer which at least partly contains gas and which is designed and arranged such that at least some sections of a layer face facing the liquid contacts the liquid; a gas-permeable layer which is arranged on the gas-containing layer on a face that faces the body and is opposite the face facing the liquid or which is integrally formed with the gas-containing layer; and a gas-supplying device which is connected to the gas-permeable layer such that gas can flow from the gas-supplying device to the gas-containing layer through the gas-permeable layer. The invention also relates to an arrangement and a use.

Abstract: An area scanning confocal microscope includes a pattern generation unit configured to generate or produce a line pattern comprising a plurality of lines, for example a plurality of straight parallel lines; a projection unit comprising a microscope objective configured to project the line pattern onto an object through the microscope objective, wherein the focal plane in which the line pattern is projected or imaged is tilted at a tilting angle with respect to an optical axis of the microscope, the tilting angle being equal to or greater than 0° and smaller than 90°, for example between 30° and smaller than 85°; and an imaging unit comprising a two-dimensional image detector configured to capture within one image frame of the image detector an image of the projected line pattern.

Abstract: The invention relates to a microscope for the molecular spectroscopic analysis of a sample (2), having a beam path having at least one quantum cascade laser (QCL) (3) which emits an infrared (IR) radiation, a phase modulator (5) which is arranged between the QCL (3) and the sample (2), at least one optical element (6) which is arranged between the phase modulator (5) and the sample (2) and a sensor (4) which detects an IR radiation which is transmitted and/or reflected by the sample (2). The invention relates further to a method for the molecular spectroscopic analysis of a sample (2) comprising the steps of irradiating the sample (2) with an infrared (IR) radiation by means of a quantum cascade laser (QCL) (3), wherein the IR radiation is directed onto the sample (2) via a phase modulator (5) and at least one optical element (6), and detecting the IR radiation which is reflected and/or transmitted by the sample (2).

Abstract: The invention relates to a method and a device for producing at least one microstructure (5) on an axial end (1a) of an optical fiber (1). The method comprises the following steps: —providing (S10) the optical fiber (1); —wetting (S20) the axial end (1a) of the optical fiber (1) with photoresist (2); —orienting (S30) the optical fiber (1) and a writing beam of a 3D printer with respect to one another; —forming (S40) the at least one microstructure (5) by exposing the photoresist (2) to light with the aid of the 3D printer.

Abstract: Optical system and method for the provision of at least one high-frequency modulated light pulse having a pump light source for the provision of high-frequency pump light pulses; an optical resonator having a coupling element for coupling the pump light pulses into the resonator and a decoupling element for decoupling the at least one high-frequency modulated light pulse from the resonator and an optically non-linear frequency conversion medium arranged in the resonator for transforming the pump light pulses in each case into two conversion light pulses and one residual pump light pulse. The resonator comprises a feedback arm for at least one of the two conversion light pulses and/or the residual pump light pulse, in which an optically non-linear feedback medium is arranged for the optical modulation of the at least one conversion light pulse and/or the residual pump light pulse.

Abstract: An aspect of the invention relates to a surface cover for a body which can be brought into contact with a liquid, comprising: a layer which at least partly contains gas and which is designed and arranged such that at least some sections of a layer face facing the liquid contacts the liquid; a gas-permeable layer which is arranged on the gas-containing layer on a face that faces the body and is opposite the face facing the liquid or which is integrally formed with the gas-containing layer; and a gas-supplying device which is connected to the gas-permeable layer such that gas can flow from the gas-supplying device to the gas-containing layer through the gas-permeable layer. The invention also relates to an arrangement and a use.

Abstract: A method of transporting magnetic particles enables magnetic particles to be transported between a plurality of microfluidic chambers which are connected to one another via a fluidic connection on a radially inner side, and are fluidically separated from one another on a radially outer side. Magnetic forces and centrifugal forces are exploited to transport magnetic particles from one chamber to another across phase boundaries.

Abstract: The present invention relates to peptides or fragments thereof, which peptides bind to mesenchymal stem cells. The present invention also relates to a method for identifying, isolating, specifically selecting and/or enriching mesenchymal stem cells, wherein the peptides, or fragments thereof, are employed for specifically binding to the mesenchymal stem cells. Also, the present invention relates to the use of the peptides of the invention, or fragments thereof, and of the mesenchymal stem cells isolated with the peptides of the invention, or fragments thereof, for treating, injuries and/or degenerated bone, cartilage or tissues.