Abstract: In a method or system for interrogating an optical chip (50), the optical chip (50) is illuminated with input light (30) and a spatially resolved image (50i) of the output light (31,32) is measured from the optical chip (50). The output light (31,32) is imaged together with a reflection of the input light (30). For example, this can be used to establish, improve, or maintain alignment of the input light (30) on a sensor input port (51) of the optical chip (50). The same detector (17) measures the spatially resolved image and a spectral response of the optical chip (50).

Abstract: In a method or system for interrogating an optical chip (50), the optical chip (50) is illuminated with input light (30) and a spatially resolved image (50i) of the output light (31,32) is measured from the optical chip (50). The output light (31,32) is imaged together with a reflection of the input light (30). For example, this can be used to establish, improve, or maintain alignment of the input light (30) on a sensor input port (51) of the optical chip (50). The same detector (17) measures the spatially resolved image and a spectral response of the optical chip (50).

Abstract: Methods and instruments for measuring a liquid sample (S1) in a well plate (50) by means of an optical chip 10. The chip (10) comprises an optical sensor (13) that is accessible to the liquid sample (S1) at a sampling area (SA) of the chip. A free-space optical coupler (11,12) is accessible to receive input light (L1) and/or emit output light (L2) via a coupling area (CA) of the chip (10). The sampling area (SA) of the chip 10 is submerged in the liquid sample (S1) while keeping the liquid sample (S1) away from the coupling area (CA) for interrogating the optical coupler (11,12) via an optical path (P) that does not pass through the liquid sample (S1).

Abstract: Methods and instruments for measuring a liquid sample (S1) in a well plate (50) by means of an optical chip 10. The chip (10) comprises an optical sensor (13) that is accessible to the liquid sample (S1) at a sampling area (SA) of the chip. A free-space optical coupler (11,12) is accessible to receive input light (L1) and/or emit output light (L2) via a coupling area (CA) of the chip (10). The sampling area (SA) of the chip 10 is submerged in the liquid sample (S1) while keeping the liquid sample (S1) away from the coupling area (CA) for interrogating the optical coupler (11,12) via an optical path (P) that does not pass through the liquid sample (S1).

Abstract: A wireless power transmitter capable of detecting a receiver and a method for the same is described. According to some implementations, the transmitter is configured to detect the presence of the receiver by detecting a change in capacitance in the transmitter by detecting the change in a current flowing through a capacitive circuit at the transmitter. According to some implementations, the capacitive circuit is formed by a first transmission coil corresponding to a first electrode and a second transmission coil corresponding to a second electrode. According to some implementations, the capacitive circuit is formed by a transmission coil as an electrode and a ground, or by the electrode and the receiver circuitry.

Abstract: A method and system for measuring a sample property (X) by means of photonic circuit (10). The photonic circuit (10) comprises at least two photonic sensors (11, 12) configured to modulate the light according to respective output signals (S1,S2) with periodically recurring signal values (V1, V2). The photonic sensors (11, 12) comprise a low range sensor (11) with a relatively low range or high sensitivity for measuring a change (?X) of the sample property (X) and a high range sensor (12) with a relatively high range or low sensitivity to measure the change (?X) of the sample property (X). The sample property (X) is calculated by combining the output signals (S1, S2) of the sensors (11, 12). Particularly, the second output signal (S2) of the high range sensor (12) is used to distinguish between recurring signal values (V1) in the first output signal (S1) of the low range sensor (11).

Abstract: The present disclosure concerns a method and apparatus for measuring a sensor (10) comprising multiple optical resonators (11, 12) optically connected to a single optical output interface (16). The optical resonators (11, 12) are interrogated with a light input signal (Si). A light output signal (So) is measured from the optic al output interface (16) to determine a combined spectral response (Sa) covering a wavelength range (W) including a plurality of resonance peaks (?1,i, ?2,j) for each of the optical resonators (11, 12). A Fourier transform spectrum (FT) of the combined spectral response (Sa) is calculated and a harmonic series of periodic peaks (n·f1) is identified in the Fourier transform spectrum (FT). The harmonic series of periodic peaks is filtered to obtain a filtered Fourier transform spectrum (FT1) and a sensor signal is calculated (X1) based on the filtered Fourier transform spectrum (FT1).

Abstract: A method and system for measuring a sample property (X) by means of photonic circuit (10). The photonic circuit (10) comprises at least two photonic sensors (11, 12) configured to modulate the light according to respective output signals (S1,S2) with periodically recurring signal values (V1, V2). The photonic sensors (11, 12) comprise a low range sensor (11) with a relatively low range or high sensitivity for measuring a change (?X) of the sample property (X) and a high range sensor (12) with a relatively high range or low sensitivity to measure the change (?X) of the sample property (X). The sample property (X) is calculated by combining the output signals (S1, S2) of the sensors (11, 12). Particularly, the second output signal (S2) of the high range sensor (12) is used to distinguish between recurring signal values (V1) in the first output signal (S1) of the low range sensor (11).

Abstract: The invention relates to a system for transmitting power inductively from a transmitter (11) to a receiver (10), the receiver (10) comprising a signal generator for generating a signal, triggered by an event reflecting that the receiver intends to receive power from the transmitter, wherein said signal intends to activate said transmitter from standby mode to activated mode; and comprising a signal transmitting coil (103) for transmitting said signal to said transmitter; said transmitter (11) comprising a signal receiving coil (112); a detector (114) for detecting said signal received by the receiving coil; and a unit (115) for activating the transmitter from standby mode to activated mode upon the detection of said signal.

Abstract: The present disclosure concerns a photonic integrated circuit (10) and a method for interrogating a ring resonator (3) comprised therein. The circuit (10) comprises an optical port (4) for coupling light (L) into and out of the circuit (10). The circuit (10) further comprises a first waveguide (1) for receiving light (L1) from the optical port (4), and a second waveguide (2) for sending back light to the optical port (4). The ring resonator (3) is arranged between the first waveguide (1) and the second waveguide (2) for coupling a resonant wavelength (?) of the light therein between. The optical port (4) comprises a polarization splitting coupler for coupling light of a first polarization (P1) to and from the first waveguide (1) and coupling light of a second polarization (P2), orthogonal to the first polarization (P1), to and from the second waveguide (2).

Abstract: A method of detecting a receiver (214) by a transmitter and a transmitter for detecting a receiver are provided. The transmitter is intended to transmit power inductively to the receiver (214). The transmitter comprising a first transmission coil as a first electrode (204) and a second electrode (206). The first electrode (204) and the second electrode (206) form a capacitor (202). The method comprises the steps of applying a voltage (216) to any one of the electrodes (204, 206) and detecting a capacitance change of the capacitor (202).

Abstract: A method of detecting a receiver (214) by a transmitter and a transmitter for detecting a receiver are provided. The transmitter is intended to transmit power inductively to the receiver (214). The transmitter comprising a first transmission coil as a first electrode (204) and a second electrode (206). The first electrode (204) and the second electrode (206) form a capacitor (202). The method comprises the steps of applying a voltage (216) to any one of the electrodes (204, 206) and detecting a capacitance change of the capacitor (202).

Abstract: The present disclosure concerns a method and apparatus for measuring a sensor (10) comprising multiple optical resonators (11,12) optically connected to a single optical output interface (16). The optical resonators (11,12) are interrogated with a light input signal (Si). A light output signal (So) is measured from the optic al output interface (16) to determine a combined spectral response (Sa) covering a wavelength range (W) including a plurality of resonance peaks (?1,i, ?2,j) for each of the optical resonators (11,12). A Fourier transform spectrum (FT) of the combined spectral response (Sa) is calculated and a harmonic series of periodic peaks (n·f1) is identified in the Fourier transform spectrum (FT). The harmonic series of periodic peaks is filtered to obtain a filtered Fourier transform spectrum (FT1) and a sensor signal is calculated (X1) based on the filtered Fourier transform spectrum (FT1).

Abstract: A sensing device for obtaining geometric referenced multi-spectral image data of a RoI in relative movement with respect to the device, the sensing device having: a first and second 2D sensor element, the device obtaining subsequent multi-spectral images during the relative motion of the Rol thus providing distinct spectral information for parts of a Rol using the first element; and providing, using the second element, an image of the Rol for generating geometric referencing information to be coupled to the distinct spectral information; each element capturing a sequence of frames at a respective frame rate. The first frame rate is higher than the second frame rate. The device generates intermediate geometric referencing information to be coupled to frames of the first sequence of frames for which no synchronous frame from the second sequence of frames is available, derived from temporally similar frames from the second sequence of frames.

Abstract: The present disclosure concerns an apparatus (10) and method for reading out an optical chip (20). A light source (13) is arranged for emitting single mode source light (S1) from its emitter surface (A1) towards an optical input (21) of the optical chip (20). A light detector (14) is arranged for receiving measurement light (S2) impinging onto its receiver surface (A2) from an optical output (22) of the optical chip (20), and measuring said received measurement light (S2). The emitted source light (S1) is aligned to enter the optical input (21) of the optical chip (20) and the measurement light (S2) is aligned back onto the receiver surface (A2). The receiver surface (A2) is larger than the emitter surface (A1) for facilitating the overall alignment.

Abstract: A plastics film with improved energy-shielding properties, suitable for application on a transparent or translucent surface, such as glass, and which is at least 50% transparent for visible light, further characterized in that it includes at least one plastic carrier layer with on top thereof as a functional layer a metallic layer consisting of antimony and/or arsenic together with indium and/or gallium, wherein the plastics film contains a total of indium (In), gallium (Ga), antimony (Sb) and arsenic (As) together, which are present as an alloy, such as indium andmonide, gallium andmonide, indium arsenide, indium gallium arsenide and/or gallium arsenide, of at least 4.0 ppm by weight and at most 25.0 ppm by weight. A glass plate to which the film is attached, is described as are objects provided with the glass plate. Methods are described for the production of the film, the glass plate and the objects.

Abstract: The invention relates to an optical resonator biosensor for the detection of butyrylcholinesterase comprising two optical resonator biosensor systems in which in the first optical resonator biosensor system a probe is attached to the resonator wherein said probe is able to bind butyrylcholinesterase. Preferably said probe is able to bind uninhibited butyrylcholinesterase. In the second optical resonator biosensor system preferably an antibody is attached to the resonator, wherein said antibody is able to bind butyrylcholinesterase, preferably wherein said antibody is able to bind both inhibited and uninhibited butyrylcholinesterase.

Abstract: A sensing device for obtaining geometric referenced multi-spectral image data of a region of interest in relative movement with respect to the sensing device, includes a first two dimensional sensor element and a spectral filter. The sensing device obtains subsequent multi-spectral images during the relative motion of the region of interest with respect to the sensing device, thus providing spectrally distinct information for different parts of a region of interest using different parts of the first sensor. A second two dimensional sensor element, using the second sensor element, provides an image of the region of interest for generating geometric referencing information to be coupled to the distinct spectral information.

Abstract: The present disclosure concerns a photonic integrated circuit (10) and a method for interrogating a ring resonator (3) comprised therein. The circuit (10) comprises an optical port (4) for coupling light (L) into and out of the circuit (10). The circuit (10) further comprises a first waveguide (1) for receiving light (L1) from the optical port (4), and a second waveguide (2) for sending back light to the optical port (4). The ring resonator (3) is arranged between the first waveguide (1) and the second waveguide (2) for coupling a resonant wavelength (?) of the light therein between. The optical port (4) comprises a polarization splitting coupler for coupling light of a first polarization (P1) to and from the first waveguide (1) and coupling light of a second polarization (P2), orthogonal to the first polarization (P1), to and from the second waveguide (2).

Abstract: A 2D occupancy system for determining a position of a user (e.g. a human, an object or an animal) in an environment includes a host device and a plurality of motion detection devices. The host device and the plurality of motion detection devices are connected through a network. Each motion detection device has a viewing angle and the viewing angle of any motion detection device overlaps with the viewing angle of at least one other motion detection device. The host device comprises an input port for receiving motion information from the plurality of motion detection devices, and a processing unit for determining the position of the user in the environment from the motion information from particular motion detection devices at a same time-stamp.