TNO (Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek) Patente

A Bell state measurement device comprising first and second optical input fiber to respectively pass first and second photon comprising a first component and a second component, and a third component and a fourth component, an optical beam splitter configured to receive first and second photon respectively from first and second optical input fiber and to combine first and second photon into third and fourth photon; first and second optical output fiber to receive third and fourth photon, the second optical output fiber comprises a delay line; and a single-photon detector configured to receive third and fourth photon from first optical output fiber, or delayed third photon and delayed fourth photon from second optical output fiber, or third photon from first optical output fiber and delayed fourth photon from second optical output fiber, or fourth photon from first optical output fiber and delayed third photon from second optical output fiber.

A quantum dot device comprising a semiconductor region (102); a first gate dielectric layer (104) of low dielectric constant dielectric material, preferably silicon dioxide, adjacent to the semiconductor region (102); a second gate dielectric layer (106) of high dielectric constant dielectric material, preferably aluminium oxide, adjacent to the first layer of low dielectric constant dielectric material (104); and a third gate dielectric layer (108) of low dielectric constant dielectric material, preferably silicon dioxide, adjacent to the second gate dielectric layer (106); wherein a thickness of the second layer (106) is less than 80% of a combined thickness of the first layer (104), the second layer (106) and the third layer (108), and more preferably less than 50%, and the thickness of the first layer (104) is less than the thickness of the third layer (108). A gate disposed on the gate dielectric layers is configured to induce quantum dots in the semiconductor layer (102). The dielectric layer structure compensates for the unwanted fixed charges present at the interface between the semiconductor (102) and the first dielectric layer (104). The second dielectric layer may be a nanolaminate.

An arrangement for characterizing a radio frequency (RF) device, DUT, is provided using a calibrated noise source, CNS (20), a vector network analyzer (10, VNA), a spectrum analyzer (10, SA), a switching assembly (300, 50) and a processing unit (60) configured to control the switching assembly (300, 50) and to estimate the characteristics of the RF device based on measurements performed by the VNA. In some embodiments the arrangement estimates S-parameters of the noise path from a computation using S-parameters of a signal path comprising in addition to the noise-path a further component and the inverted S-parameters of that component.

Printing head (1) for 3D semi-solid extrusion printing, comprising: - a printing head housing (5) comprising a nozzle (4); - a plurality of upstream channels (2) arranged to transport semi-solid material from a source (11) towards a corresponding progression actuator (7) during use; - a plurality of progression actuators (7) arranged to drive semi-solid material during use; - a multi-channel body (8) that is releasably provided in the printing head housing - wherein the multi-channel body is at least tapered towards the nozzle; - wherein the printing head further comprises a plurality of ducts (9) formed by the multi-channel body and the printing head housing; - wherein each upstream channel of the plurality of upstream channels is in fluid connection with the nozzle via a corresponding transport channel (3) arranged to transport a semi-solid material during use, - wherein each transport channel comprises a corresponding progression actuator and a corresponding duct such that, during use, semi-solid material present in each upstream channel is transported in a corresponding transport channel towards the nozzle.

Droplet deposition device comprising:- a substrate driving arrangement arranged to drive a substrate in a drive direction;- a substrate provided on the substrate driving arrangement;- a liquid dispenser arranged to provide liquid on the substrate;- a dispensing actuator arranged to control a gap distance in a dispensing direction between the liquid dispenser and the substrate;- wherein a transfer distance is defined as a gap distance in which the liquid provided by the liquid dispenser adheres to the substrate;- wherein the liquid dispenser comprises a first material and the substrate comprises a second material such that when the liquid dispenser is brought at the transfer distance from the substrate, the substrate has higher adhesion forces acting on the liquid than the liquid dispenser and the liquid present in the liquid dispenser is transferred to the substrate.

The invention relates to a method and system for extrusion printing. A powder formulation is provided consisting of one or more components into a chamber (3) equipped with a piston (7). The powder formulation is compressed within the chamber using the piston to form a compressed block of material, wherein the piston is configured with an outer diameter smaller than the inner diameter of the chamber, such as to establish a gap (G) that is configured to permit air to escape while preventing the material from exiting therethrough during compression. The compressed block of material is extruded through a nozzle (9) to achieve extrusion printing.

The present application pertains to a photonic in-plane chip coupling product including a support with a first and a second stack, each comprising a carrier and an optical component. The first stack has a carrier with a mounting surface and an opposing carrier surface carrying the first optical component, which has a first guided optical mode. Likewise, the second stack has a carrier and an optical component, featuring a second guided optical mode. These stacks are aligned so that the centers of their respective mode field distributions coincide. To minimize thermal deformation, at least one carrier in each stack includes layers of different materials with mutually different thermal expansion coefficients. Therewith a total thermal deformation between the mounting surfaces and the centers of the mode field distributions is minimized.

The invention is aimed at providing a transfer method for a functional material (3) onto a receiving substrate (5). The method comprises the steps of: providing a plate (1) including at least one cavity (2), providing a functional material (3) followed by providing at least one coating (4) covering the functional material. Releasing the coated functional material by imparting an energy pulse (6) at the at least one cavity such that the functional material is transferred onto a receiving substrate. (5)

An optical phase tuning device (1) is provided that comprises a beam splitter (3), a tunable gradient phase shifter (4) and a controller (6) for providing a single drive signal (Iheat) for resistively heating the resistive heating elements. The beam splitter (3) is configured to split a coherent optical beam into a series of individual coherent beams. The tunable gradient phase shifter (4) has a corresponding series of thermo-optical phase shifters (4b, 4c, 4d, 4e), each of which is configured to apply a respective phase shift to a respective one of the individual coherent beams. The thermo-optic phase shifters each comprise a respective resistive heating element (5b, 5c, 5d, 5e) having a mutually different width. The controller (6) provides a single drive signal (Iheat) for resistively heating the resistive heating elements. Therewith a respective phase shift is imposed to each of the individual coherent beams that is substantially inversely proportional to the squared width of the respective resistive heating elements.

An optical system (100) and method for processing one or more optical beams. At least one optical coupling surface (10) is configured to receive an incoming optical beam (Lin). A first photonic circuit (30) is configured to receive a first set of optical signals (L1) from the optical coupling surface (10) and interferometrically combine these signals to cause generation of a second set of optical signals (L2) including separate tip and tilt signals (Lx,Ly) indicative of the respective angles (Ax,Ay) and/or positions (DX,DY) of the incoming optical beam (Lin) on the optical coupling surface (10). Simultaneously, one or more optical data reception signals (Lr) may be generated separately from the tip and tilt signals (Lx,Ly). Advantageously, the optical system (100) may be used for improving and/or maintaining alignment in an optical communication device.

An electronic device is disclosed, comprising a casing with a compartment that encloses an electronic circuit with one or more circuit parts provided on a flexible substrate. An attachment area of the flexible substrate is attached to a mounting plane inside the compartment. A pull tab extends from the attachment area and passes through a slot such that the pull tab is engageable from the outside of the compartment. A position of the slot with respect to the mounting plane is arranged for causing a local bending and/or stretching of the attachment area in response to a mechanical pull force on the pull tab. This creates a local stress concentration in the attachment area that propagates and detaches the flexible substrate from the mounting plane. The detached flexible substrate can be removed from the compartment through the slot.

The present invention relates to a photo-acoustic spectroscopy gas cell designed for the identification of gases. The system comprises a gas chamber for containing a gas sample and a light receiving portion that receives excitation light capable of inducing a photo-acoustic effect in the contained gas. A cantilever is mounted at/within the gas chamber. The cantilever is specifically adapted with resonance characteristics that enable it to resonate in response to the photo-acoustic excitation generated within the gas cell. A measurement unit within the system is configured to analyze the response of the cantilever to the photo-acoustic effect, thereby determining the identification of the gas based on this response. This invention provides a precise and reliable way for gas analysis and identification

The invention relates to a system and method for identifying the concentration of a gas using the photoacoustic effect. The system comprises a gas cell for containing a gas sample, an excitation light source with amplitude and/or wavelength modulation that emits light matching an absorption line of the target gas, an optical waveguide sensor adjacent to the gas cell for measuring acoustic pressure, and a processing unit to determine gas concentration from the acoustic pressure. The method involves placing the gas sample in the gas cell, directing modulated light into the cell, inducing a photoacoustic effect by the interaction of light and gas, measuring acoustic pressure via the optical waveguide sensor, and using the processing unit to determine the gas concentration. This system and method enable precise and efficient gas identification based on photoacoustic signals.

A packaged electronic device (1) is provided that comprises:a lead frame (10) comprising a fluid channel (11);an electronic device (20) mounted on a surface of the lead framea package (30) enclosing the lead frame and the electronic device comprising openings (12a, 12b) giving access to the fluid channel and terminals (40a, 40b) for providing electric contacts to the electronic device.

A wearable device (10) comprises a vessel sensor (11) configured to perform measurements (Td,Tp) on a blood vessel (V) for determining a size (D) of the blood vessel (V). A pressure device (12) is configured to controllably apply an external pressure (Px) on a body part for affecting the size (D) of the blood vessel (V). An attachment means (13) is configured to hold the vessel sensor (11) and the pressure device (12) against a respective skin surface (S) of the body part so that the size (D) of the blood vessel (V), as measured by the vessel sensor (11), is affected by the external pressure (Px) applied by the pressure device (12) on the body part. A processor (14) is configured to process the measurements (Td,Tp) as affected by the external pressure (Px).

An ultrasound system (100) comprising a housing (10) with a contact surface (10c) for contacting an object (O), and a dynamic platform (11) comprising an ultrasound transducer (13). The dynamic platform (11) is suspended inside the housing (10) and connected to the housing (10) via a flexible connection structure (12) configured to allow reorientation of the dynamic platform (11) inside the housing (10) with respect to the contact surface (10c) for modifying a field of view (F) of the ultrasound transducer (13) on the object (O). A method of measuring an object (O), the method comprising reorienting a dynamic platform (11) inside a housing (10) with respect to a contact surface (10c) of the housing (10), while the dynamic platform (11) is held suspended via a flexible connection structure (12), for modifying a field of view (F) of the ultrasound transducer (13) on the object (O).

A method for manufacturing a three-dimensional electrically conductive structure (100). A substrate (S) is provided with a structure (10) comprising a set of core structures (10p), each respective core structure (10p) extending with a respective height (H) above a surface of the substrate (S). A conductive seed layer (11) is applied to the substrate (S). A mask layer (12) is applied by coating to the conductive seed layer (11). The mask material (12m) forms a mask pattern masking the conductive seed layer (11) at respective masked areas (12p) of the substrate (S). The conductive seed layer (11) is exposed at respective exposed areas (12e, 12e'). Additional electrically conductive material (13m) is grown on the conductive seed layer (11) at the respective exposed areas (12e,12e'), including the conductive seed layer (11) covering the set of core structures (10p) to form part of the three-dimensional electrically conductive structure (100).

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