Abstract: A device for Fourier Transform spectroscopy comprises: a first light propagating unit receiving a first portion of a light signal and being configured to couple out fractions of the first portion by a sequence of first out-coupling elements with a remaining fraction of the first portion continuing propagation along the first waveguide; a second light propagating unit receiving a second portion of the light signal and being configured to couple out fractions of the second portion by a sequence of second out-coupling elements with a remaining fraction of the second portion of the light signal continuing propagation along the second waveguide; wherein optical path lengths between sequential out-coupling elements are different in the second waveguide and the first waveguide.

Abstract: A device for interferometry detection comprises: a receiving unit configured to receive a reference beam and a response beam, based on a sample interacting with the sample beam to form the response beam carrying information of the sample; at least a first waveguide system configured to receive the reference beam and configured to transport the reference beam along different path lengths to a plurality of first outputs; a plurality of light sensors (configured to receive a combination of the reference beam and the response beam forming an interference of the reference beam and the response beam, wherein the plurality of light sensors are configured to simultaneously detect interference of the reference beam and the response beam corresponding to different path length relations between the reference beam and the response beam.

Abstract: A sensor device comprises: a plurality of sensors, wherein each sensor comprises an optical resonance element configured to be affected by a measurand and has a mutually unique optical resonance frequency; the sensors being configured to receive at least one of a first and a second sensor interrogation signals forming a plurality of signal component pairs, wherein a difference in frequency between the frequencies in the signal component pair is different for different signal component pairs; wherein each sensor is configured to modulate an optical intensity of at least one frequency of a mutually unique signal component pair; and a detector, being configured to receive the first sensor interrogation signal and the second sensor interrogation signal, wherein the detector is configured to detect a plurality of mutually unique beat frequencies for detecting a plurality of measurements by the plurality of sensors.

Abstract: A light emitting device comprises: a plurality of light emitters; a plurality of light propagating units, each being associated with a group of light emitters and comprising: a waveguide for coupling in light from different light emitters at different locations of an in-coupling end, wherein the waveguide is a multimode waveguide for propagating light in dependence of the characteristics of the light for combining the light emitted by the light emitters at a transmitting end; a funnel element with a smaller cross-section at a receiving end than at an output end, wherein the receiving end is arranged to couple the light at the transmitting end into the funnel element for propagating the light to the output end for output of emitted light being a combination of light of the different characteristics.

Abstract: A sensor device comprises: a plurality of sensors configured to be affected by a measurand; a waveguide associated with a group of sensors and configured to receive an optical interrogation signal comprising at least one interrogation wavelength; a plurality of control elements, each being individually controllable and configured to control a resonance wavelength of the sensor associated with the control element; the sensor device being configured to, for read-out of measurement from a selected sensor, tune its resonance wavelength to be aligned with a selected interrogation wavelength; the group of sensors being configured to be controlled for arranging, at a single read-out time point, the selected sensor uniquely aligned with the selected interrogation wavelength for reading out the measurand measured by the selected sensor.

Abstract: The present disclosure relates to a micropump device for creating a net fluid flow along a flow direction. The device includes a fluid channel and a plurality of piezoelectric transducers arranged adjacent to the fluid channel. The piezoelectric transducers are organized into a set of at least three groups. The groups are consecutively arranged along the flow direction, and each group includes at least one piezoelectric transducer. A controller of the device is configured to actuate the piezoelectric transducers using at least three periodic electrical control signals. Each electrical control signal is associated with one group of the set. The controller is configured to consecutively delay the at least three electrical control signals, in accordance with the consecutively arranged groups of the set, to create the net flow of fluid along the flow direction.

Abstract: According to an aspect of the present inventive concept there is provided an optical device (1) for modulating incident light (L), comprising a resonance defining layer structure (110) comprising an optical state change material (112), and an electrode layer (120) comprising at least two spaced-apart electrode elements (121, 122, 123). The electrode elements are individually addressable and arranged to cause an optical state change of a portion of the optical state change material between a first state and a second state, wherein the portion forms a geometric structure (131, 132, 133, 134, 135, 136) defined by the arrangement of the at least two spaced-apart electrode elements. The optical state change material is configured to alter an optical response of the optical device upon the optical state change between the first state and the second state, thereby determining the modulation of the incident light.

Abstract: A light sensor for spectrally resolved light detection, said light sensor comprises: an upper reflective element; a lower reflective element; a photo-sensitive element therebetween; a spacer element, configured to form the lower reflective element or arranged between the upper and the lower reflective element; wherein the elements form a stack of layers which define a resonance structure between the upper and the lower reflective element for providing a resonance of light; wherein the spacer element comprises at least two different materials, a distribution of which is different between different pixels in an array of pixels such that a resonance wavelength is different for different pixels; and wherein for a plurality of pixels, geometrical structures smaller than the resonance wavelength are defined by the at least two different materials.

Abstract: Example embodiments relate to microfluidics chips for performing biochemical reactions. An example microfluidics chip for performing a biochemical reaction in a reaction mixture includes at least one sample unit. The sample unit includes a plurality of cavities configured to receive the reaction mixture. Each cavity has an inlet and an outlet. The sample unit also includes a first fluid channel for transporting the reaction mixture to the plurality of cavities. The first fluid channel is fluidically connected to the inlet of each cavity. Additionally, the sample unit includes a second fluid channel for transporting oil. The second fluid channel is connected to the outlet of each cavity. The structure of the outlet of each cavity is configured to allow gas to pass from the cavity to the second fluid channel and to prevent the reaction mixture from passing from the cavity to the second fluid channel.

Abstract: In one aspect, an optical system is disclosed. In some embodiments, the optical system includes an optical waveguide, and at least two coupling means forming at least one confocal point being located within the optical waveguide, where a first coupling means of the at least two coupling means has a first focal length, and a second coupling means of the at least two coupling means has a second focal length. In some examples, the first coupling means is configured to couple and/or focus incident light to the optical waveguide, and the second coupling means is configured to emit and/or collimate light conveyed by the optical waveguide.

Abstract: The present disclosure relates to non-reciprocal/directional optical devices. The disclosure proposes a directional optical device, an optical system and a corresponding method of operating the optical system. The directional optical device comprises: a waveguide structure and an array of a plurality of acoustic wave transducers, wherein a first plurality of acoustic waves generated by the array is configured to induce a momentum-shift and a frequency-shift in a first optical wave propagating in the waveguide structure such that the first optical wave transitions from a first optical mode to a second optical mode, wherein the array is configured to establish a first set of phase differences between the first pluralities of acoustic waves. The array is tunable and/or the waveguide structure is tapered to change a wavevector of the optical wave in a first section of the waveguide structure such that the first optical wave transitions to the second optical mode.

Abstract: The present disclosure relates to the collimation of optical beams generated by an array of emission pixels. The disclosure proposes an integrated optical system that includes an array of emission pixels and a metamaterial having a plurality of subwavelength structures, wherein the metamaterial includes a plurality of collimation regions. A first collimation region is configured to collimate respectively a first part of a first optical beam and a second part of a second optical beam having different wavelengths. A second collimation region is configured to collimate respectively a second part of the first optical beam and a first part of the second optical beam. The collimation includes diffracting the parts based on a distribution of the plurality of subwavelength structures, wherein the parts of the first optical beam are combined, and wherein the parts of the second optical beam are combined.

Abstract: The present invention provides a flexible ultrasound transducer (1) for an ultrasound monitoring system for examining a curved object.

Abstract: The present invention provides a flexible ultrasound transducer for an ultrasound monitoring system for examining a curved object. The ultrasound transducer comprises an integrated circuit structure and a multi-layered structure, said multi-layered structure comprising an array of ultrasound transducing elements arranged in a first layer structure and configured for generating ultrasonic energy propagating along a main transducer axis Z and an array of control circuits arranged in a second layer structure, and wherein the array of control circuits and the integrated circuit structure are configured for operating the array of ultrasound transducing elements in said first layer structure, Further, the multi-layered structure comprises at least one flexible layer arranged so that the bending flexibility of the multi-layered structure permits the ultrasound transducer to form a continuous contact with said curved object during operation.

Abstract: A sensor device comprises: a plurality of sensors, wherein each sensor comprises an optical resonance element configured to be affected by a measurand and has a mutually unique optical resonance frequency; the sensors being configured to receive at least one of a first and a second sensor interrogation signals forming a plurality of signal component pairs, wherein a difference in frequency between the frequencies in the signal component pair is different for different signal component pairs; wherein each sensor is configured to modulate an optical intensity of at least one frequency of a mutually unique signal component pair; and a detector, being configured to receive the first sensor interrogation signal and the second sensor interrogation signal, wherein the detector is configured to detect a plurality of mutually unique beat frequencies for detecting a plurality of measurements by the plurality of sensors.

Abstract: The present invention provides a flexible ultrasound transducer for an ultrasound monitoring system for examining a curved object. The ultrasound transducer comprises an integrated circuit structure and a multi-layered structure, said multi-layered structure comprising an array of ultrasound transducing elements arranged in a first layer structure and configured for generating ultrasonic energy propagating along a main transducer axis Z and an array of control circuits arranged in a second layer structure, and wherein the array of control circuits and the integrated circuit structure are configured for operating the array of ultrasound transducing elements in said first layer structure, Further, the multi-layered structure comprises at least one flexible layer arranged so that the bending flexibility of the multi-layered structure permits the ultrasound transducer to form a continuous contact with said curved object during operation.

Abstract: A system and for distributing data for 3D light field projection and a method thereof. The system comprises input terminals and output terminals that are connectable to pixel elements of a display. Data paths are established between input terminals and output terminals, and are controlled by data switches. The system also comprises a control plane adapted for applying control variables to the data switches. Control switches of the control plane select the control variables which are applied to the data switches. Sequences of control variables and enable variables propagate along at least one first delay line and along at least one second delay line, respectively. Delay units of the at least one first delay line and of the at least one second delay line have a synchronous relationship. During system run-time patterns contained in the stream of input data are detected for determining the sequences of control variables.

Abstract: A collecting device (200) for collection of particles and presentation of collected particles for analysis comprises: a first layer (202) and a second layer (220) spaced apart for defining a particle collection chamber (240); wherein the first layer (202) is configured to receive a flow of air (104) carrying airborne particles, wherein the first layer (202) comprises a plurality of inlet nozzles (210) configured to extend through the first layer (202) for transporting the flow of air (104) therethrough; wherein the inlet nozzles (210) are configured to face a first surface (222) of the second layer (220) for capturing airborne particles in the flow of air (104) entering the particle collection chamber (240) by impaction of airborne particles; wherein the collecting device (200) is configured to provide optical access for performing a measurement, based on light, of airborne particles collected in the particle collection chamber (240).

Abstract: According to an aspect of the present inventive concept there is provided a light emitting unit, for emitting laser light at a laser wavelength, arranged on a planar surface of a substrate. The unit comprises a first reflective element to reflect light at the laser wavelength, a gain element to amplify the light, and a second reflective element to partially reflect the light, and to emit the laser light. The elements form a stack of layers integrated onto the planar surface. Each layer is parallel with the planar surface, and the gain element is arranged between the first and second reflective elements. The unit comprises a beam shaping element integrated with the stack. The beam shaping element is configured to shape the emitted laser light. The beam shaping element comprises a plurality of structures spaced apart in a direction of an extension of a layer of the beam shaping element. A size of the structures and/or a distance between adjacent structures is smaller than the laser wavelength.

Abstract: A light sensor for spectrally resolved light detection, said light sensor comprises: an upper reflective element; a lower reflective element; a photo-sensitive element therebetween; a spacer element, configured to form the lower reflective element or arranged between the upper and the lower reflective element; wherein the elements form a stack of layers which define a resonance structure between the upper and the lower reflective element for providing a resonance of light; wherein the spacer element comprises at least two different materials, a distribution of which is different between different pixels in an array of pixels such that a resonance wavelength is different for different pixels; and wherein for a plurality of pixels, geometrical structures smaller than the resonance wavelength are defined by the at least two different materials.