Abstract: Nanostructured shapes comprising at least a first part and a second part. The first part has a longitudinal axis L and comprises a first absorbing material and an emitting material. The second part is connected to the first part and comprises a second absorbing material. The second part mainly absorbs light with direction of polarization other than the long axis L of the first part, and the nanostructured shape emits light mainly polarized along the long axis L of the first part. The disclosure further relates to an assembly of nanostructured shapes, to a method of synthesizing nanostructured shapes and to a polarizing light emitting plate comprising such nanostructured shapes.

Abstract: A switchable optical element, a smart window having the same, and a method for switching between optical states of the element such that the optical element includes a pair of substrates disposed facing each other, and at least one cell arranged between the pair of substrates and filled with scattering particles. An electrode configuration is provided on the pair of substrates such that a first group of cell electrodes is interleaved with electrodes of a second group of cell electrodes on a face of a first substrate, and a third group of cell electrodes is interleaved with electrodes of a fourth group of cell electrodes on a face of a second substrate. Switching of the cell includes laterally transporting over at least a distance corresponding to two adjacent cell electrodes of one same cell electrode group and confining the scattering particles to a confinement region within the cell.

Abstract: An angle selective filter for a light projection system including a wavelength conversion material illuminated by an excitation light source in a first wavelength range, the wavelength conversion material re-emitting light in a second wavelength range after excitation by the light in the first wavelength range. The filter is configured to have a first average transmission which is high for light in the first wavelength range and for angles of incidence in the range [?1,?2], in a third wavelength range, the filter is configured to have a second average transmission which is high for light having an incidence angle in the range [?1,?2], and a third average reflectivity which is high for light having an incidence angle in the range [?2,?3], after reflection on the wavelength conversion material.

Abstract: Nanostructured shapes comprising at least a first part and a second part. The first part has a longitudinal axis L and comprises a first absorbing material and an emitting material. The second part is connected to the first part and comprises a second absorbing material. The second part mainly absorbs light with direction of polarization other than the long axis L of the first part, and the nanostructured shape emits light mainly polarized along the long axis L of the first part. The disclosure further relates to an assembly of nanostructured shapes, to a method of synthesizing nanostructured shapes and to a polarizing light emitting plate comprising such nanostructured shapes.

Abstract: A method is described for preparing a nanorods assembly. The method comprises providing a mixture comprising at least a liquid crystal and nanorods and depositing said mixture on the surface of at least substrate. The method further comprises aligning said nanorods with their long axis of the nanorods along a preferred direction on said substrate resulting in a nanorods and liquid crystal assembly, said aligning being performed by applying an external alternating current electrical field.

Abstract: An organic light emitting diode comprises a hole transport layer, an emissive layer, and an electron transport layer. The hole transport layer and optionally the electron transport layer is made of a material having a refractive index having a specific anisotropy.

Abstract: A method is described for preparing a nanorods assembly. The method comprises providing a mixture comprising at least a liquid crystal and nanorods and depositing said mixture on the surface of at least substrate. The method further comprises aligning said nanorods with their long axis of the nanorods along a preferred direction on said substrate resulting in a nanorods and liquid crystal assembly, said aligning being performed by applying an external alternating current electrical field.

Abstract: Example embodiments relate to an optical shutter including a first polarization filter having a nanopore-cholesteric liquid crystal layer, which includes a cholesteric liquid crystal matrix and a plurality of liquid crystal nanopores embedded in the cholesteric liquid crystal matrix, and having a reflective wavelength band that varies according to electrical control, and a second polarization filter that is parallel to the first polarization filter, includes a nanopore-cholesteric liquid crystal layer, which includes a cholesteric liquid crystal matrix and a plurality of liquid crystal nanopores embedded in the cholesteric liquid crystal matrix, and has a reflective wavelength band that varies according to electrical control.

Abstract: An organic light emitting diode comprises a hole transport layer, an emissive layer, and an electron transport layer. The hole transport layer and optionally the electron transport layer is made of a material having a refractive index having a specific anisotropy.

Abstract: A solid-state microstructure comprises a substrate, and an intermediate layer arranged on the substrate. The intermediate layer comprises lanthanide oxynitrate and a thin-film layer arranged on the intermediate layer. The thin-film layer comprising a preferentially oriented perovskite-related material.

Abstract: Example embodiments relate to an optical shutter including a first polarization filter having a nanopore-cholesteric liquid crystal layer, which includes a cholesteric liquid crystal matrix and a plurality of liquid crystal nanopores embedded in the cholesteric liquid crystal matrix, and having a reflective wavelength band that varies according to electrical control, and a second polarization filter that is parallel to the first polarization filter, includes a nanopore-cholesteric liquid crystal layer, which includes a cholesteric liquid crystal matrix and a plurality of liquid crystal nanopores embedded in the cholesteric liquid crystal matrix, and has a reflective wavelength band that varies according to electrical control.

Abstract: An optical device is described for irradiating at least one object in a medium. The optical device may be a microfluidics device, and comprises at least one integrated planar waveguide that enables providing sheet irradiation of objects in the medium. A characterization system including such an optical device and a corresponding method of characterizing an object or a fluid are described.

Abstract: A method for trimming at least one photonic device, and comprising obtaining one or more photonic devices including at least one component for supporting propagation of electromagnetic radiation and a covering layer comprising a polymerisable liquid crystal. The method further comprises determining, for a selected photonic device selected from the one or more photonic devices, a selected liquid crystal orienting condition to be applied to the polymerisable liquid crystal resulting in a preferred value for an electromagnetic property of the selected photonic device. The method also comprises, while applying the selected liquid crystal orienting condition, polymerizing the polymerisable liquid crystal cladding layer of the selected photonic device, thus obtaining a polymerized liquid crystal on the selected photonic device.

Abstract: The present invention relates to the removal of ion contaminations from liquid crystal layers in liquid crystal display devices. The ions are removed by means of so called ion pumping, which utilizes the anisotropic viscosity of liquid crystals. The ions are pumped up and down in the liquid crystal layer by means of an alternating electric filed. The alternating electric field simultaneously alters the alignment of directors in the liquid crystal. The viscosity in the liquid crystal is related to the director directions, and the ions are thereby moved in non-closed trajectories. The inventive ion pumping can be further improved using an asymmetric or biased alternating electric field.

Abstract: The present invention relates to a method and system for determining particle properties. Such properties may for example be charge, size, drift, etc. The method comprises determining (110) an electric mobility distribution based on detection of individual particles. The latter may be performed for a single particle over time, for a plurality of particles at the same time or in a combination thereof. The method also comprises deriving a particle property based on a periodicity in the electric mobility distribution.

Abstract: An optical device is described for irradiating at least one object in a medium. The optical device may be a microfluidics device, and comprises at least one integrated planar waveguide that enables providing sheet irradiation of objects in the medium. A characterization system including such an optical device and a corresponding method of characterizing an object or a fluid are described.

Abstract: The present invention relates to a method and system for determining particle properties. Such properties may for example be charge, size, drift, etc. The method comprises determining (110) an electric mobility distribution based on detection of individual particles. The latter may be performed for a single particle over time, for a plurality of particles at the same time or in a combination thereof. The method also comprises deriving a particle property based on a periodicity in the electric mobility distribution.

Abstract: The present invention relates to the removal of ion contaminations from liquid crystal layers in liquid crystal display devices. The ions are removed by means of so called ion pumping, which utilizes the anisotropic viscosity of liquid crystals. The ions are pumped up and down in the liquid crystal layer by means of an alternating electric filed. The alternating electric field simultaneously alters the alignment of directors in the liquid crystal. The viscosity in the liquid crystal is related to the director directions, and the ions are thereby moved in non-closed trajectories. The inventive ion pumping can be further improved using an asymmetric or biased alternating electric field.

Abstract: The present invention relates to the removal of ion (42, 44, 902) contaminations from liquid crystal layers (901) in liquid crystal display devices (900). The ions (42, 44, 902) are removed by means of so called ion pumping, which utilizes the anisotropic viscosity of liquid crystals. The ions (42, 44, 902) are pumped up and down in the liquid crystal layer by means of an alternating electric filed. The alternating electric field simultaneously alters the alignment of directors (41) in the liquid crystal. The viscosity in the liquid crystal is related to the director directions, and the ions (42, 44, 902) are thereby moved in non-closed trajectories (43, 45). The inventive ion pumping can be further improved using an asymmetric or biased alternating electric field.

Abstract: The present invention relates to the removal of ion (42, 44, 902) contaminations from liquid crystal layers (901) in liquid crystal display devices (900). The ions (42, 44, 902) are removed by means of so called ion pumping, which utilizes the anisotropic viscosity of liquid crystals. The ions (42, 44, 902) are pumped up and down in the liquid crystal layer by means of an alternating electric filed. The alternating electric field simultaneously alters the alignment of directors (41) in the liquid crystal. The viscosity in the liquid crystal is related to the director directions, and the ions (42, 44, 902) are thereby moved in non-closed trajectories (43, 45). The inventive ion pumping can be further improved using an asymmetric or biased alternating electric field.